Just had a set of wheels built with 30mm shallow btlos rims, dt swiss 180 rear hub, and a carbon ti front hub. 1310 grams with aerolite spokes. My local wheel builder who has been doing it a long time was very impressed with the btlos rims. He felt they were an excellent balance of weight and stiffness. So I'd go the btlos route with the 350s if I were you. The exp problems are real and the money you'll save vs dt swiss almost makes the warranty a wash. Just buy new rims if need be. I'm a huge dt swiss fan too btw.