So, I've got a few used track pieces I've been throwing lately. A 505A and 916AT. The 505A is long and strong on THS or medium conditions. The 916AT I'm still playing with trying to figure out where it fits for me. It seems pretty strong at 2000 grit, but longer than I think I'd like. I may need to adjust the surface.
Right now, my benchmark ball is my track freak. It's pretty old and worn. Back in the day, it hooked as much as the 916AT. Now, I keep it at 1000 grit and it reads the lanes reasonably well and tells me where I need to go. The ball has seen better days so I am looking for a benchmark ball. Any ideas?