I did a quick search on the forum and didn't come up with anything - but I figured i'd throw it out there. I've been messing with GST and having FANTASTIC results, both with strength and mobility gains (thought i was highly mobile before, but my pikes and weighted pike hangs are effortless now, shoulder mobility and dislocate strength is increasing faster than i ever thought).
One movement I'm still having a rough time with is the pancake (i can get low to the floor, but my groin/inner thigh mobility isn't where i'd like it - my legs are maybe just more than 45 degrees, i'd like them to be way farther) and also the middle split. When I was a kid I was a huge Jean Claude Van Damme fan (go ahead laugh, but when you're 5 years old Bloodsport and Kickboxer are great films lol), and could do middle splits all day, even held myself up between two chairs, could kick up to the wall and do a middle split against the wall even. I don't know if it was from a growth spurt or just not maintaining - but when i was about 12 i lost the ability to do that. I'd like to get at least close to it again.
Does anybody have any good progressions or stretches to specifically develop middle split and pancake mobility?