Oh, and I forgot to add that I know a guy that's had a couple of 800's this year with Roto Grip stuff and he says that the Sonic Boom has more backend than the Ultra Sonic... but by looking at the specs, I find that hard to believe. Is he right, or is he wrong?

Ric,

Even though the RG's are the same and the differential is higher in the Ultra Sonic, that doesn't mean you should see more backend.  The high differential means the ball will flare more and it wants to start hooking sooner.  Doesn't always mean more backend.  The Core and Cover on the Sonic Boom are an absolute perfect match up.  This ball by far is my favorite Roto Grip ball, (Oracle Vision is not far behind).  With my medium ball speed and higher rev rate I use this ball on most house patterns when they aren't too slick.  I can strike for most of the night with it, due to its extreme length and backend movement.  Believe it or not this ball has a very strong backend for me, even with only .029 differential.  This is because it skids so far down the lane storing energy, when it is ready to hook it flat out hooks.  

I was having carry issues with it last week and forgot to practice what I preach.  

I took it to the shop and sanded it to 600 and put a light coat of Storm Reacta Shine on it and the ball worked like a charm again.  I had left two pocket 7-10 splits with it the week before and I remembered I hadn't touched the surface in about 80 games.  (Bad Roger)

Thanks,
--------------------
Roger Noordhoek
Technical & Customer
Services Manager
Roto Grip, Inc.
888-450-6920
RogerN@rotogrip.com
www.rotogrip.com

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