Originally Posted by
rousseau
1. Would a 40-hole rim, such as the Velocity Deep V, which is readily available at Yellow Jersey, work as well as a 20-hole rim, which is not readily available anywhere?
Depends on how it's drilled. The deep V (I believe) is drilled at an angle to allow the spokes to line up nicely against their respective hub flanges.
If you try to run every 2nd spoke hole you'd get a spoke aligned for the left flange going to the right flange, with a bit of a bend as it exits the nipple. Can't say whether it'll be critical though.
Rumour has it that Velocity can do custom drillings, you might want to look into that.