The Phobia is about the same strength wise as the Sideswipe solid
the sideswipe pearl is definitely a step down piece, but I find that ball is sort of lazy downlane, meaning its super controllable downlane on a sport pattern.
The Kinetic emerald is a special piece with a unique roll, easy clean length, corners hard, but controllable.
the GB2 phenom pearl is a strong pearl cover, very arcing motion.
I felt it was to responsive a cover for me, but i have a bunch of hand and don't really need cover help, so for me it was a conditional piece