I have an FSA square taper crank and need a 68x113 BB. Amclassics is about $120 and SINZ have a hollow ti spindle, 3 bearing, carbon shell for $79. I know it is in the BMX stuff but it fits and works ok on MTB according to VSI. Any thoughts pro or con? They also have a lightweight headset. And BTW, no I don't work for them, have no reason to ask other than I am building up a light HT and am looking for cheaper parts.