Does your gym have a hyperextention stand?
I cannot provide cock pics until I fully understand which is the correct form and why. However secretly I am hoping you will be the recipient of said photos.
I would try to learn and perfect the RDL. Would be easier on the back, and I think it's superior anyway. That's been my experience.
the most important body part to train is the ass
Are you talking the hole or cheeks?
point the toes down, think of it like doing a bicep curl, supinate
<----------Inbox void of cock pics?Que?
I sent them, but my cock is really small and difficult to see. Hope this helps.