Ive been using these wedges for several months now. I like the fact they are conforming to the grooves rule, but i honestly can't tell the difference in spin between these and my old seida wedges i've had for a couple years. perhaps, the grooves got worn down a bit by use, but i don't see much of a difference on the green. The rupas has good spin, in fact i had a tournament where my partner nudged me asking if they were conforming! I haven't experienced much rust, nothing that can't be removed quickly. I'm one of those guys that can't stand the rust, but this wedge is ok with me. As for hitablity, I have consistent ball striking already so i really can't comment on that. I do recommend these for those that need to change to conforming grooves but don't want to miss out on the spin.