Here is a shot of our top speed run with the prop (40mph).
Notice that 'popping' sound as the vehicle goes by the camera. That is our second prop shaft ratchet letting go. Last time (on the dyno) the failure mode was the lightened hub itself. This time, in a strengthened hub, it was the ratchet itself.
We've taken the prop shaft ratchet out since we don't need it for now. With the hub still OK, we could have popped in another ratchet (I still have the one from before) and just kept it to 35 and below, but we've opted to just bolt it up tight for this trip. The ratchet was there for when/if we build the spool drive and isn't needed with the chain so we'll lock up straight