Radical Guru Ball Specs:

- Color: Black Solid All colors do vary somewhat from the picture shown.
- Core: Asymmetric Core
- Factory Finish: 500 and 1500 Siaair Micro Pad
- Radius of Gyration (RG): 2.501**
- Differential (Diff): 0.044**
- ** RG and Diff are based off of 15 lb. balls
- Recommended Lane Condition: Heavy Oil
- A few tiny pit holes in the cover stock of the ball are normal

I drilled my Guru 50 x 5 x 40...and was instantly shocked by the amount of continuation that the ball has for as strong as it is.  Most "big ball" asymmetrics tend to lay off once they see friction...but not Guru...Guru only stops hooking when it finds the back of the Pit.  This is great, though I was skeptical at first over how useful something that strong might be, it still floats through the fronts with relative ease.  It's a go to ball to blend out the back part of the lane on over under house shots...on top of its place as the ball on longer heavy volume patterns.   

The Guru is one great hook monster!!! It gets down the lane well for a strong ball. I used layout A (50×4×40), I used a shorter pin to PAP than suggested. I've been using it on our league shot which is wtba tokyo. This ball gives just a nice move off the pattern to kill the pocket.

If you have 1 ball to buy in this second part of the season and want plenty of hook without sacrificing carry, look no further. Wow, thats Radical!!

The Guru is the most hooking ball on the market. PERIOD. Just take few minutes to take a look a the two videos Reality Vs Perception (part 1 and 2) to see plenty of reason why that ball is a beast!

For my part, I drilled it 60x4 1/4x70 with a kind of double thumb. I just want that ball to be the strongest in my back and the only thing I can say is: Mission accomplished!
With the pin down layout, I can control the backend with a lot of motion down the lane and a lot of entry angle for a solid ball. I can play that ball on a lot of different pattern but the main reason is to play on longer and/or heavier shot. I was really surprise by the continuity through the pins that ball have. It seems that it never stops.

The coverstock offer great durabilty and response to surface change. Don't be scared, ajust the surface and you will be amaze by the way it response.

Try it is to adopt it.......you will never regret!!

#TeamRadical
#wowthatsradical

Radical Guru

Ball is drilled  90X2 1/4X25  Box Finish                              Tested on 39Ft Sport Pattern

All I can say about this ball is HOOK HOOK AND MORE HOOK.  This ball is unbelieveable !!!  even for how I layed this ball out, this ball is extrtemely strong.  But the one thing with this ball is that it doesn’t quit at all.  The roll on this ball is very strong, but still have a lot of energy in the back part of the lane.  And when it hits the pins, it is like you are throwing a 20lbs ball, this ball hits hard from what I have seen with it.  With the layout that I have on this ball it allows me to be very versatile on what I can do with it.  when I tested in on the 39 ft sport pattern, I could easily play straight with this ball, or I could get in on the lane and hook it and it would jump hard off the spot, just a strong continuous arcing motion that this ball has.  This ball read the pattern very well without giving up energy for the backend.  I didn’t change the box surface on it as I wanted to try OOB and see what happened.  I think I may order another Guru and drill it very aggressive.  And I will definently compare this ball to the Thug Unruly when I get it. For the lower rev guys looking for a lot of hook, here is the ball you will want to drill.   For the higher rev players, it will be a great ball for those heavier and longer patterns,  and as it shows on some of the videos, this ball out hooks the competition.  I will try to post some videos of the balls that I have drilled.

Thank you DV8, Brunswick, Radical for giving me the opportunity to represent your companies.

Jason Dee
DV8, Brunswick, Radical Advisory Staff
RoweZone Bowling Store

BALL SPECS

Pin Length:  5"

Ball Weight:  15


DRILL PATTERN

Layout:  45 x 5 x 40

X Hole (if there is one):  none


BOWLER STYLE

Rev Rate:  300

Ball Speed:  17

PAP/Track:  4 3/8 by 5/8


SURFACE PREP

Grit:  1000, 4000 aberlon

COMMENTS

Likes:  This is a little overdue but I've been really impressed with the versatility of this ball.  It certainly is the "hook monster" that everyone claims but has proven to be very tunable as well, when it comes to surface changes.  I've been able to get it to fit nicely on a number of different lane conditions and lane surfaces with simple surface adjustments.  The other thing that has really stood out to me is the hitting power of this ball.  The sound that it makes going through the pins is like nothing else out there at the moment.  While I haven't thrown the Mighty yet, I was fortunate to see both the Guru and the Guru Mighty up against each other this past weekend and was very impressed.  They seem like an excellent compliment to each other and I can't wait to get a Mighty in my bag as well.

Dislikes:  None at this time...maybe the fact that I'm going to have to drill a couple more to fill out the Nationals arsenal? 

The Radical Guru is one of my favorite solid balls of all time. The Guru is just plain fun to use on house conditions where the middles are flooded. While everything else will skid through the puddle, the Guru continues to dig, then flips hard when it meets the down lane friction. With my Guru drilled pin above the bridge, I can open up the lanes as much as I want, and I never have a doubt of it making it back to the pocket. If I miss right into the friction a little early, it will flip over and roll its way into the pocket. If I give it a little tug into the oil, it will hold line, then flip and drive hard through the pins. I also have a Guru drilled pin under the bridge, which rolls very strong and predictable on heavier volume patterns. There simply is no other choice, if you have lots of oil to overcome, get the Radical Guru to guide you through!

Barry McKee
Brunswick Regional Staff
The opinions expressed are solely those of the writer and not the Brunswick Corporation.

BALL SPECS

Ball Weight: 16 lbs


DRILL PATTERN

Dual Angle Layout: 70 x 5" x 70

X Hole (if there is one): P3


BOWLER STYLE

Rev Rate: Higher, between 370 and 410 rpm, aka Cranker

Ball Speed: 16.50 mph

PAP/Track: 5 3/8" over and 7/8" up with a high track


SURFACE PREP

Grit: Box - 1500

Type: (Matte, Polish, Sanded): Sanded


LANE CONDITION

Length: Multiple

Volume: Multiple

Type (THS, Sport Pattern etc): Multiple


BALL REACTION

Length: 8 / 10

Back End: 9 / 10

Overall Hook: 8 / 10

Midlane Read: 7 / 10

Breakpoint Shape: Strong midlane roll


COMMENTS

Likes: Strong ball with a weaker layout

Dislikes: None


If you are looking for a heavier oil ball that won't quit, then the Guru is a great choice. The Guru is the strongest ball in the Radical Line and with the new core design it has a strong continuation downlane. The Guru was made for heavier oil conditions, and it lives up to the billing. I have mine drilled with the control layout that is shown on the layout sheet that comes in the box. I wanted a ball that will give me a stronger cover in oil, but not hook early. Even with the box 1500 surface, I haven't found a condition where it hooks early. With a pin under drilling, it still gets 45 feet down the lane and makes a strong motion downlane. You can easily make surface adjustments to this ball that won't affect the strength. I can keep moving left into the oil, and it still has the recovery down lane. Another great feature is creating more entry angle into the pocket to get the 7 or 10 pin out.