Honestly, with a 166 average, I wouldnt go out and invest in a new arsenal. The 8 you have should be enough. Those balls are vastly different and even drilled the same there is no way a Tropical Storm and a Big One yield the same reaction.
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Perception is NOT reality.


My Pics http://pg.photos.yahoo.com/ph/northface28/album?.dir=/9f09&.src=ph

If you look at many of the pro's arsenals, as well as our own Jeff Carter, you will notice that most of them find a drill pattern that they like the reaction of the best and use it on 90% of their equipment and just vary the pin height above or below the fingerline to help enhance a ball's reaction or help it fill a hole in their arsenal.

What drill pattern is used on your equipment, I can't tell by the pictures? Please also post your Positive Axis Point Measurements.

If you live in the Chicago area, go take a few lessons from Bill Spigner at Hawthorn Lanes, he will help you figure out what to do.

Agreed with the redrilling issue.  Nothing wrong with that.  Hell, my RS-1 is on Drill #3, and it's still a tank.

If you don't like the reaction, a good proshop would offer to plug and redrill at minimal to no cost.  A good driller understands the fact that he must maintain clients to keep his business.  See if your driller will do this.  If not, or you're serious about switching to Roto:

Epic Battle
Epic Saga
Horizon Pearl
Saturn, or Mercury, depending on how light your light oil condition is.

As far as the collegiate sport shots, the Battle and the Saga would work perfectly.  My girlfriend bowls collegiately, but she's not as equipment oriented as most (Has two Oracle Vision's, one drilled with the pin IN the ring, and the other pin below the ring).  On one of the tougher shots, she had trouble making her first Vision (In the ring) turn the corner at all.  So, she got the second Vision and had it drilled to read the lane sooner.  I'm thinking about talking her into taking the surface down as well, probably somewhere around 600.  As far as a Roto arsenal, those 4 should cover any condition except toast.  There isn't really a current line-up ball from Roto made for absolute toast, if plastic isn't your style.

Hopefully this helps.  


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"For the money, for the glory, for the fun.  Mostly for the money."
-Smokey and the Bandit

I don't think that you will regret switching to Roto Grip I switched to them several weeks ago never been happier good bowling to you
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Carl

Regarding the necessity to redrill balls.

If you have the same drill pattern on all those different cores and surfaces you might not be stuck with the same type of reaction.

I have a friend...he has an up the back release...he uses many many many places a sort of label leverage setup.  Pin next to ring or slightly up or down with his cg tucked in!  And just varies surface(sort of Like walter RAy type approach and a similar delivery).  He bowls well almost everywhere.

I've seen I'm a redbird in video...198 average is not a surprise to me....

Regarding a switch to rotogrip it sounds like a fun adventure(they have good stuff).  It does not sound necessary but sounds like something to do!

REgards,

Luckylefty
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Open the door...see what's possible...and just walk right on through...that's how easy success feels..