So, getting ready to build up a new wheelset (it's a sickness, I know), and I was having some thoughts.

At what depth are there actual "aero" benefits?

The rims in contention are Velocity A23 with O/C rear, and Pacenti SL23. I know the finish on the Pacenti is nicer, but hear me out on the technical aspects.

Velocity A23: 23mm wide, 19mm deep. O/C rear (which I've built before with Aeroheads) makes for a very nicely tensioned rear wheel.

Pacenti SL23: 23.5mm wide, 27(?)mm deep. Depth will add some strength obviating a bit of the need to balance tension but it still won't be as balanced as the A23. Maybe some aero benefit as well.

The question; is there any "real" benefit at that depth? Width is comparable, so the tradeoff is the offset build vs 8mm of depth. If there's no actual benefit, my gut tells me that the offset build will probably be the better wheel.