I had a Barnett rx280 recurve, now I use a Barnett demon. both are take down models( the bow seperates with 1 hand bolt), and with a reddot sight, it is lethal. My barnett requires no rail greese, and works quite well. the only problem I have ever had with my old barnett, was the sight rail kept working loose, but a little lock tight took care of that. Good product. Good company.
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.