I know all of the cool kids are going to disc brakes but here in Florida we don’t even use our brakes. Those new aero gravel wheels look positively awesome for fat, comfy tires but what about with rim brakes? What’s the best bet for 40mm wide tires and rim brakes? And don’t tell me Mavic Open Pros LOL
If 5 watts helps you justify the purchase then so be it. That is 5 watts over the total worst case scenario of an Open Pro with probably 32 spokes. Just going to a modern 24 or 28 spokes probably saves 5 watts.