Mavic Open Pro or CXP33?

The IRD rims you pay a bit more for, however, they are stiffer and lighter. I have Cadence on my road bike and for climbing in Mallorca, excellent, light, nippy, a joy to ride.

I was looking at the IRD Cadence Road/VSR combo. I figured for a 80ish Kg guy like myself 32-3x rear and 28-1x front, would give a light yet strong wheelset. I'm not sure if its worth going radial/1x on the non-drive side of the rear to balance the wheel, as the VSR design would result in less dish.

How do you guys tend to build them up?

Cheers.