Just curious, but why do you like him better at guard? Seems to have the NFL RT body type to me. IF he gets down to about 335 lbs. His measureables will look a lot like DJ Fluker's.
I know he's not a redshirt, and not even a member of the team yet, but what do you think the honest opinion of the staff is regarding Custis? He gets discussed ad naseum on some sites as alternately the savior and a bust before he takes a snap. I'm sure coaches have remained in regular contact with him and are looking forward to getting to see him practice.