The Clean on my BM is super fat @ bedroom levels and seems to get fatter when @ gig level.

 I am suffice with how it sounds @ bedroom levels although . I prefer to record with it @  bedroom levels too.

 My OD changes a little (in a good way) when @ gig levels.

 It seems that the more I go past noon on the master (which is ooober loud LOL)
  the more the clean channel gets dirty (which by then the Power section is working   
  pretty F'in hard) and the OD seems to get more 3D + bloomy.  I rarely go past noon though. 
 
 With my amp mic'ed @ gigs I usually set my amp this way:

 Clean Vol between 1 to 3:00 / Master Vol @ 10:30
 OD drive @ 1 to 3:00 / OD Master Vol @ 11:00

 My amp is extremely loud @ this point but I prefer it this way. I will sometimes change to accommodate different venues. I use a lot of pedals too though. 

 At home I use the settings above, just the masters don't get past 8:00 though