MOTM

I remember an interesting point about MOTM being the consistency, the 
jacks always in a row on the bottom, etc.  From looking at pictures 
on the MOTM-110, it appears to be a bit of an anomaly.  Lining that 
image up next to an MOTM-410, the pots are scaled vertically 
differently.  Is there a convention now that didn't exist then?  Is 
there any convention at all?  The consistiency thing might prove 
tough to maintain with weirder modules like a giant sequencer.  Just 
curious, that's all.  (Also, the proposed MiniMoe 3U doesn't follow 
the convention at all.  Grin)