Any owners of both of these heads? I've never gotten used to the slight stick in the BH-40 and I am one of those people who rarely locks up my head while using it.
Any direct comparisons of the M10 to BH-40? My largest lens is a 24-70 f/2.8. The folks at Markins recommended that a M10 would be best.
I would be using this on a set of 2540 legs. Should I simply stick with the BH-40 (which has worked fine for me). I here so many good things about the smoothness of the Markins I almost feel inclined top switch.

