My MN/PE1 has improved considerably, but I still cannot bring my knees to my chest and sometimes I have difficulty getting good compression unless I really work at it.
I think I found out why. The Middle and Front Split Courses have shown me how mangled and tied up my lower back is. Really all this hip centric stuff is really tight, but I especially notice the lack of mobility in my lower back w/ these stretches.
I think these Stretch Courses will greatly help progress some of my lagging strength exercises.