A friend of mine bought a BJ frame off the rack and had a series of problems, finally we realized that the rear triangle was misaligned by 5mm!
I don't want to hate, they are nice frames, however, I think there is a tendency to assume that handmade frames cannot be wrong and that factory frames are always less than...
So, nice frames but doublecheck the lines befoe you build. I mean its steel so, it is really easy to correct.