For me, being 6'5" helps up to a point. I have a 120# laminate that I can get back to 32 no problem. In fact I have some longer arrows (34") but I worry about shooting them at full draw for fear of damaging the bow. I bought the longer arrows, rather rashly it seems, for a 150# bow I just got. (Great bow by the way) I can't get it to 32" yet, maybe next season, but I doubt this year. Getting to my point, even though I'm tall and have long arms, and never felt "compressed" much by the 120, I can feel the 150 really squishing me up. I'm sure I'll get it to 32" but I'm not positive I'll ever get it back to 34. I guess that's OK, since I've seen the bow on a tiller at 34 and this will give me a little bit of a safety buffer.
As far as drawing goes, I tend to start out at about forehead level or so and really try to roll my elbows down so I can use my lat muscles as much as possible. I've seen the rolling loose quite a bit, but am worried I'd fall over and skewer myself if I tried it. I've found warming up is vital, or my left shoulder (The one which belongs to the arm which holds the bow) tends to be pretty sore.