We were concerned about the load that would place on a versaplanetary, and decided not to risk it. Overall my experience with versaplanetaries has been pretty good, but we have occasionally had rather dramatic failures in the past. We figured that we had the weight to give it, and that with the vex plastic clamping bearing blocks, it wasn’t much more complicated to use the spur gear reduction.
I think the last time we counted we got to around 50, but it’s probably closer to 45 now that we’ve finished adding the polycarb pieces.