I just got off the phone with my barber (yes, a real, honest to God barber, not a chain, and I asked him about where to get a strope, what was best to use, surface texture, what I should exspect to pay, that type of thing. He said take mine, as I haven't used it in 15 years!. Straight rasors are bad form now, and he can get a closer shave with safety rasors. He said he will dig it out for my next visit.
The only real difference between a good tracker and a bad tracker is observation. All the same data is present for both. The rest is understanding what you are seeing.