I'm getting ready to start building my second set of wheels. The first set had no dish to them, S/A hub. This set is going to be around 7 speed Dura Ace 7400 hubs. I measured them and ran them through Musson's wheel calculator. It said my rear spokes should be 294.7/293.5 non-rounded numbers.
Does 1mm difference sound right to have enough dish?

Thanks
Mutt