Spinning hexs out of control

Im rounding out rear wheel hex hubs like crazy. Ive ruined one wheel and Im on the way to ruining the second. Im using lock tight and all too. Problem is if I really muscle the wheel nut my wheels dont spin freely.

I know the answer is those 23mm adapters. Are the prolines any good or is Dace the only choice?

I guess the ultimate solution is aluminum 14mm hex hubs and the Dace 23mm adapters. Then Im buying all new wheels and tires :035:

I dont read about this issue much and Im wondering why its happening so often.