Hey man! Cool WIP! Just in respone to what you said you want to change. Yeah squating him Y trans a little and lengthening his gait is gonna help a lot. Amping up the Y trans wont really add weight, you definately want to amp it up but contrast in your spacing as he translates down is whats going to give him that weight.…
well, in the worst case scenario, the biped rigs in max seem to hold up with no mesh. (example: http://www.polycount.com/forum/showpost.php?p=2166535&postcount=9 )