Quote:
Originally Posted by Scott Kozutsky
My experience is with super shifters and ball shifters. 1310 got super shifters in I believe 2011 (maybe earlier) and have used the same internals in every year except last. On 865 we used ball shifters in 2014 and by the end of the season they were definitely showing signs of thorough wear. These characteristics have been parroted by nearly everyone I've talked to.
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FWIW 2220 used ball shifters in 2013, and, aside from some assembly goof ups from us, they performed quite well on that robot, which also saw use through 2014 as a demo bot. I drove that bot at demos quite a few times and never noticed a significant performance drop, but then, I had my hands on it after three tournaments of competition. We definitely abused those gearboxes, and they held up quite well. Right now the ball shifters are probably what I'd get if I wanted shifting.
Not trying to invalidate you experience, but just providing a counterpoint to help avoid an echo chamber.