I bought my 1st Storm ball in a very long time, a Virtual World, which is an R3S hybrid cover with a Gravity core. Any idea how strong the cover is, Im guessing its basically a slightly stronger VE. Ive heard R2S is comparative to S70 form 900g, which is one of my favorite covers. Any advice before I lay it out? Approx 300rpm, 6* tilt, can vary my rotation quite a bit, and ball speed from 14-18 at the pins depending on how I hold my wrist. 5 3/4 over 1 up pap. I usually do best with asyms over the ring or bridge, with psa .5 to 3 inches from the thumb.