Okay well I'm 6'3.5 and never had my leg fall asleep. I've taken the Crossfire on a 10 hour road trip before as well, and never got a cramp, or really felt uncomfortable at all. Sometimes I get a pain in my back, but it's usually from sitting in an awkward position, which sometimes happens when I'm just driving and driving.. so a little readjustment usually fixes that. Anyway I love my xfire, tight squeeze or not.