The trick to setting tracking force is to not use any sort of gauge at all. Simply look at the stylus (use a magnifier if need be) as you set it down onto a record with the cue...
Note the deflection vertically. The position of the cantelever should be precisely in the middle of the opening from whence it exits the cartridge body. In the case where that is hard to see (often it is) you can watch the deflection as you start with a very light tracking force, and slowly move it up... the deflection has a center *linear* region due to the suspension in the cartridge. You can see this region by eye with out too much practice. Below the region, the styus "stands up" too much. Above the region, the stlus looks "low" and too close to the body.
The ideal is usually in the center of this region. Since no two cartridges are ever exactly the same, this makes it easy to set the tracking to the exact condition of the cartridge you are using every time.
It may take a few times through - and checks with your gauge, but after that you can do it quickly and by eye every time!
Note, that it is important to ZERO the arm accurately, if you want to use the built in gram calibrated feature of many arms...
And, yes, I think Sean is correct you have to change the weight to compensate for the brush thingie...with my method you can ignore that and just look at the cantilever.
Imho, in MM carts there are *many* that sound way better than the venerable old Shure design... Ortofon, AT, and a few others come to mind.
