Something I forgot to mention:
You may be using an electronic stylus pressure gauge, but with BOTH the Shure V15 IV and the Stanton 681EEE you can't just measure it and leave it at that. The reading for the Shure must be increased by 0.5 gram over your desired tracking weight, and that for the Stanton must be increased by one gram over your desired tracking weight. This is because both have that pivoted brush. The first 0.5 gram of force on the Shure, and the first one gram of force on the Stanton, will only serve to raise the brush. After that, force begins to be applied to the stylus.
I like to track the 681EEE at 1.5 grams. This will result in a measurement of 2.5 grams. My Shure V15 IV seems to work best at 1.25 grams. You would need to measure 1.75 grams to do that.
If you don't want to use the brushes, you can lock the one on the Shure out of the way. On the Stanton, you must remove the brush by snapping it out to the rear of the stylus assembly, and then (IMPORTANT) rebalance the arm at the counterweight before resetting tracking weight, since you are removing about a gram from the arm/cartridge (the weight of the brush).