mmmm in regards to this move...
as a gymnastics coach... i have to say... if you have sufficiently strong hamstrings and lower back, then the only problem is SHOULDER FLEXIBILITY. despite popular belief, this move is NOT about spinal flexibility but about shoulder flexibility... i have one of the LEAST flexible spines ever but can get into (what we call in the gymnastics gym) bridge quite easily.... for our gymnasts we use some pretty brutal methods of stretching shoulders, ones which should never leave gymnastics gyms, coz then everyone would know just what goes on inside them, but you need ALOT of shoulder flexibility to get into this pose :) so work on opening your shoulders and the rest should just come ;)
"This is my body and I can do whatever I want to it. I can push it, study it, tweak it, listen to it. Everybody wants to know what I'm on... What am I on!?! I'm on my bike, busting my ass 6 hours a day. What are you on???"