Hi !
First of all, just so you won't be surprised by the pics, I'm 16. I'm currently working on my left and middle splits, but I could have had my left split since a while if I had been doing my exercises equally on each side. Doesn't matter that much but I'll work on it.
I have a question for those who have a full or almost full middle split: what do you think is the best stretch to progress fast ? I've been wondering also, is the butterfly stretch using some other muscles that aren't involved in the straddle ? Because I personnally find the butterfly stretch rather uncomfortable compared to the straddle.
So I've only took pics of my right split, but I have almost my left split. My middle split is at about 145 degrees.
Since my knee cannot overextend, the space between it and the floor cannot be shortened unless I roll my hip (then my hips wouldn't be squared).
For some reason my hamstrings must be kinda flexible because I don't find this uncomfortable...
Well that's about it...
Btw: I may have mispelled something, my first language is french. =S