I've built wheels before; it's a pain and I got a great deal on labor. They probably gave it to the 15 y/o new kid to build though. I measured the differences in spoke lengths and going from 3 cross to 2 cross is a distance of over 1 cm. I'm gonna need new spokes, otherwise, I probably would have done it already. I just think its shady to a half job thinking I wouldn't notice.