So I've been going to Bjj for a couple of weeks now. I've been fortunate to always be paired up with blue belts who are nothing but helpful. I've noticed since I'm so tall (6'8") I've had some problems with some techniques. For example coming from standing position to trapping the knee and sliding the wizzer through the under hook to a D'Arce choke my coach has had me sprawl while the smaller students are just able to roll forward slightly to get it. Is it normal for tall people to modify all moves or is it just cause I'm green and not so flexible yet? Any pointers? My coach helps alot...my school is SAS Team under Jorge Gurgel