No, definitely not but to calf. Sometimes I don't get below 90°, but in general I do. My piked leg is not straight, etc. I am a mess, I am sure, but I figure trying
to do them is the only way I'll ever do them properly.
The last exercise shown in this video of Pistol progressions (front roll into a pistol) seems like a very good one for balance, mobility and learning the motion.http://youtu.be/qwFaGmIhf70