Yeah haha couldn’t agree more Peter. I’ve normally taken the pragmatic approach to equipment but bearings were a grey area for me. I know that I own a $250 set of fulcrum 5’s that roll like a bowling ball downhill, as did a set of shimano RS 80’s I had, but my Ksyrium SL (even when new) seem to have a degree of resistance even after servicing as well.

Also heard conventional cone and cup loose bearings roll just as well if not better than cartridge.

I need a “guide to wheels for dummies” book would be simpler

Cheers I think I’ll go with the dura ace assembly like you suggested.