I have the original DT Swiss 1900 wheelset that came with my SB6. They are brand new and still unused. I have tried to sell them, at a bargain, but no real interest has been raised. The wheels that replaced them are i9 hubs laced on 30mm Stans Flow. I'm meh about the rims, but the hub engagement is really nice. Recently I have been doing more DH riding on my SB and have thought about putting some DH tires on the OG wheelset while keeping more all-around tires on the i9 wheels. Well, I say all-around, but that usually means DD Front and Rear more often than not, but certainly always DD on the rear. Is it worth the hassle of keeping up 2 wheelsets that aren't identical, but would have a large overlap. I remember back in the back when I raced DH I tried to make 2 wheelsets work for me, but I always felt like it was a hassle and my gut tells me to not do it again. Am I wrong? Thoughts? I think that it would be nice to bang up the DT Swiss wheelset, but honestly I don't think they would last as long or well as my i9s.