well i love my grippers. when im at a park the wheels are absolutely silent, and even with a huge air, my landings always silent but solid.
just be careful when practising flat, cuz the other day i was practising carved nose manuals to 180, and i accidentaly put my back wheel down too early, so half way through the 180, the back wheel slid across the concrete, and now its got a tiny flat spot. but luckily its small enough to eventually ride out of. also i was practising on ashfolt, so i dont know if that had anything to do with it.
this probably didnt help too much, but i say go for the change. grippers are so much smoother,