666 - slimmest thigh
301s - slightly wider thigh and top - most tapered
BB - smaller top block, less tapered than 301, but a tad more than 666
DC - comparable top block, but no taper at all
sexih07 - the top block is looser than the 4 cuts above, and the taper is a tad less than on BB
634s - widest top block, biggest thigh, and lo a tad above the 07's