It depends on your set up a lot?
21-Mono = 1614/3 chopper still very good
21-Tunnel = 1515-19-38%
45-Hydro = 2117-19-38%,2215-17-45%, 2217-19-38%, with a ski = 2317-19-38%
45-Tunnel = still working on one, the 1817-19-38% is being tested now, just waiting for results?
45-Mono = 2015-17-45%
67-Hydro = 2415-17-45%, 2517-19-38%
1/8th scale = 2315-17-45%, 2317-19-38%,2316/3-15-60%,
Still working on 2216/3-15-60%
Some in stock currently and others are on order from Jim @ ABC
I can tell you most of these are not just sharpen and balance no matter what you read or hear on Facebook.
Many other options coming up soon. Some just need more work than others.
Thanks For Reading,