Bought FOUR JJ1400 to date £3000+
from Joe and I have kept none of them

After running all of them long and extensively, as a GTBA member, only buy from a known rep who understands swarf/tollerances in the lbuild i.e Andy in the UK.

It is worth the $300 £400 extra to have one at least JJ flying in the air. (that's not just one sat in a work bench or land based in a RC car)

Resale or Residual value on a JJ!?? buy for a dollar, sold for a cent. Who wants them 2nd now ?