The reflective surface helps. It's not as precise as Wally's stuff, but it's a hell of a lot cheaper.
I also use the cheapo stylus weight gauge that Tim sells. I think it's fine for getting in the ballpark, you should fine-tune by ear anyway. But a nice digital scale allows finer comparisons while fine-tuning.
I also use the cheapo stylus weight gauge that Tim sells. I think it's fine for getting in the ballpark, you should fine-tune by ear anyway. But a nice digital scale allows finer comparisons while fine-tuning.