Well to be honest I'm not sure if it's asymmetrics I don't match up with or something else. But I haven't had a single asymmetric work for me. The fact that they were Ebonite might have something to do with it(Big One, No Limit, Angular One, SR300) in the sense that I don't match up with them well. Although, I have a feeling except for the Big One it could have been a layout problem as well. They all had 4 1/2" pins or more except for the Big One which could be a bad thing for me on asymmetrics. The only ball that I can say I actually liked was the Whirl Wind, and that happens to be symmetric. Anyways, it could also be a layout problem or even a pearl thing but it's all hard to say.
As for the Rapid Fire Solid, I don't see that one being stronger than my Rival, at least not quite to the degree I'm looking for if at all. Dulling the Gravity Shift some has come across my mind, but I'd rather get the Attitude because at least it's a Solid, where the Gravity is asymmetric AND pearl(which I may not match up with). Plus I'm not confident enough that even with a little dulling the Gravity would fit this bill in terms of hook potential, despite its cover.
I'm still considering the Attitude Shift in case anyone thought otherwise. You guys are starting to convince me of how good the ball can be. I would just need a little help with the pin distance. My first instinct is 4". Since I use dual angle and I want angularity somewhere between 3-4" makes sense to me.
Oh, and my driller is the one that told me the Attitude is bad. He didn't go into any detail but I believe he just said something along the lines of it rolling bad. But I bet he hasn't seen a lot of them in action either.
HB, thanks for the offer but I'll have to pass at this time.