The rock solid is very good ball. Hooks like hell when brand new. The problem is it loses its steam quite quickly. Some say after 60 games this ball is a dud. I  only used my mine for barely 3 months. I have quite a number of friends who have this same ball. As of the moment we are all trying to find a replacement for it. I wonder if it has anything to do with the TEC. We're kind of scared to purchase some of the other Columbia balls with TEC because it's not exactly worth your money

hi



got this driled the other day. it was the second drilling for medium lanes. i think that it was sumpin like 4X4 1/2.

this ball rolls great and even with this medium drilling it still turns the corner harder than any ball i have ever bowled with. it carries well. ill relate the carry to another modern ball that i got drilled that day. the matrix III. the matrix is maxed out and the rock still hooks more than the tps III and carries much better. i have bowled about 30-40 games with it so far and it hardly has a dent or scratch on it. so far so good...it hasnt died.



definitly a ball for real sloppy wet lanes....do not underestimate the hook on this ball. with the medium drilling on this ball my jaw dropped to the ground when i saw this thing hook.



i bowl at about 25 km/h and have average revs. i am currently standing an extra 7 boards left of where i normally do.....and puting less revs on it just so i can use it.



overall a great ball....when i can use it. good for the start of tounies when there is oil. carries corners well. overall 8.5 on the smith scale.

i used the rock for the last 2 weeks now, this ball leaves a lot of ten pins

regardles where i move to.

i am always in the pocket with this ball

just don,t take out the ten pin for me.

could be the house itself

i got my rock drilled stack leverage with the pin about 3/4 in. outside of my grip and my cg is just inside my grip between my thumb and ring finger.

i left it in the box finish and i have been completely impressed with my results with this ball. even though it is a particle ball and probably has between 200-250 games on it, it is still an outstanding ball. it didn't eat up the oil as quick as i thought like most particle equipment. it doesn't hook as much as it used to, but it still moves and it still demolishes the pocket. at first it was a good heavy pattern ball, but now i like it for carrydown, so i can open up the lane then switch to a more backend ball.. which would be my cuda 2000.. i give the rock a solid 9.. it would be a 10, but sometimes with it's strong breakpoint and entry angle, it sometimes leaves a hard 8 or heavy 9

Well here's another late review on a Columbia ball.

I purchased this ball about 1 1/2 years ago, the ball is in 15-pounds
with a 3-inch pin. I drilled this ball with the pin in the 12 o'clock
position with the CG in the palm area.

The ball once used new hooks all over the lane and is somewhat uncontrolable.
but, once the oil starts to sink in the cover stock the reaction is more controlable. Important must keep cover stock clean after each use and touch up the cover with your pro shop (or spinner)this will help with long term use.

I have shot a 300 game with this ball and a few 700 series, I put this ball on the shelf for awhile, and recently I pulled this ball out of the shelf and I will post another review later on the proformance.

Parlevelplayer

I just bought the ball....  i really like the ball, it doesnt work @ all on dry lanes, works best on wet lanes! i have a 150, but after getting this ball i got a 198 average , good ball by Columbia!!!

Check profile for Personal specs.
Ball: 15lb Columbia ROCK (pin-in)
Surface: Green Scotch Brite pad.
Drilled: Pin about 1/2 inch to the right of ring finger and 1/2 inch above. CG right on top of pin. No balance hole needed (barely)

This was a very impressive ball for me.  I still find myself pulling it out when i know I'm going to be encountering Heavy Oil.  Used the ball on all types of lines and patterns.  Ball would work great on anything from medium to heavy oil.  It didn't seem to have the problem with rolling out that a lot of other particles have.  The ball just kept on rolling.  I have well over 500 games on the ball now, and it still hooks almost as hard as it did from day one.  I've baked the Oil out of it 2 times.  Never resurfaced it (unless you want to call hitting it with a Green scotchbrite pad to dull it up resurfacing).  

The only ball I have had recently that I can successfully compare it to would be my Track Mutant.  Overall the Rock went longer than the Mutant but made a much more dramatic move on the backend.  The mutant was really rolly, and if there wasn't enough oil the ball would just lose all its energy and roll straight down the lane.  The Rock would usually hook somethiing like 2-3 boards more than the Mutant.  Mutant was drilled strong (can't remember exactly how but I remember it being a strong drilling)

The Rock didn't flare a whole bunch.  I think that partially is what caused it to not roll out very often and have such a strong backend.  Overall I loved the ball, still love it, just doesn't fit my hand so I usually don't roll it.  I'd give the ball an easy 10 out of 10.  Great ball Columbia.

Jeremy

--------------------
"Strive to be perfect,  that is afterall the only way to become perfect."

"If you compare yourself with others,
you may become vain and bitter;
for always there will be greater and lesser persons than yourself.
Enjoy your achievements as well as your plans."

Taken from Desiderata

Proud user of Columbia 300 and Visionary Bowling Products