Custom Orlowski Workhorse

For the rear wheel I've got the Flo rim and an On-one/novatec hub but undecided on spokes. It seems a shame to have a nice aero rim built up with round spokes but using CX-rays would more than double the cost of the wheel.

A bit of a late response but here are my 2p...

On the rear how much difference will crossed aero spokes actually make? I don't have a paper to back it up but IMO CX rays on the rear is more bling than anything else. If you were that worried you'd have already ordered a ral cover and spokes wouldn't be a question.