wilhelm--
I got my 1st pair of Underhooks from Ron, and please believe all the great things he's said about them. They're awesome! I'm waiting on a 2nd pair from McLane...
Everyone has their own preferences w/ side splits, but the locations of the stretch panels on the Underhooks makes it less of a necessity than you'd think. All of my sprawls are split leg, and I was hesitant about the Underhooks, but was pleasantly surprised. I've found NO restriction to any of my kicks or thai knees. I've not had the chance to roll in them yet, though.