Doesn't sound right. The H+ had hubs that were about 100g lighter than the A23 build, and had fewer spokes. The rim weight is pretty close, but as they were built, the A23s should have been a little heavier. The C2 rims, again, are at about the same weight as the H+, and you'll be using the same hubs - is there really almost 200g savings in the spokes? I don't think that +/- 100g matters much either way with these builds, but don't think these weights sound consistent.