I have the sideswipe solid,the kinetic and several GB2 pieces
the sideswipe solid is a great piece, and I like it it because its predictable
the kinetic has a quicker responding cover, the GB2 phenom pearl has a strong cover which can be a bit less forgiving for me if I don't release it quite right
the GB2 solid is an earlier rolling, very predictable benchmark ball, surface is easily tuneable
and its 115 bucks most places
Sideswipe solid or GB2 would be my choice