I just bought a tropical storm, the black/cherry one with the hybrid cover. The other colors are pearl. Drilled it pin up above my ring finger about 6in from my PAP. I'm med/high speed and med/high revs, about 70 degree rotation and 15 degree tilt. I've only thrown it for a few games in practice and haven't really had the chance to throw it on a burned up/dry pattern. Tried my best to simulate that during my 1st practice session with it. I bowled the 1st 4 or 5 games with my no rules solid to break it down best I could just bowling by myself.
It covers more boards on the back end than I thought it would, more than I wanted actually but I can work with it. I bought it specifically to throw up the boards in between 5 and 10 when there is way to much over/under coming across mid lane.
It really sucks there isn't more demo days but maybe you can get lucky and test/compare the tropical storm against the hustle. You might be surprised at how many boards the tropical storm can cover. Only time it didn't recover was if my hand came around the ball on the release. I'm guessing the weak lightbulb core in the Tropical Storm means it won't recover as much on bad shots. But that is more my fault, not the ball.