Yes, you set the tracking force with the scale 1 gr heavier than you actually want. This is because the brush weighs one gram, and is held up by the brush hairs in use, subtracting 1 gr from the effective weight of the tone arm. You need to increase the anti-skate higher because the brush itself adds to the skating moment -- it sticks out even farther than the stylus after all.
There are three or four different versions of the stylus. Conical, elliptical, hyper-elliptical, and stereohedron, all of which have difference tracking characteristics. Add to that the differences in compliance (essentially flexibility of the rubber suspension in the stylus holder) and you can have quite a few different tracking weights.
Don't know what the original cantilever looked like or was made of, but someone else will surely chime in with that information. What counts is low effective tip mass, and for that a high compliance boron or telescoped beryllium would be best. However, I don't think anyone is making beryllium cantilevers any more, so yours will be aluminum, telescoped aluminum, or boron.