Matt -
Thanks!! That's just the kind of info I was looking for. I'm desperately working on my spare conversions. I've just recently committed fully to straight plastic at my spares, and definitely need more practice.
As for my ball layouts, any suggestions there?? All my balls were layed out last year, at a time when I was speed/rev challenged. I've since improved greatly on both fronts, so it would seem I have new issues to deal with. My Eraser, Rush, Sonic X and Retro Roto Blue (from profile) all seem to have a nice arcing motion, but, like you pointed out, seem to rev big in the midlane. I had thought that the assymetric cores in the Animal and Apocalypse would go longer for me, but apparently that isn't true, either. They rev just as much/more than the other stuff. My X-Factor is the only ball that seems to get through the fronts before starting to rev up, but by then, I was just lost.
I have another tourney at the end of the month -- enough time to get better with my spares and make some decisions about my arsenal. Maybe working on a straighter shot, too?? Noone was playing outside, but on THS, I can't imagine it would be such a good idea....