This is the head. It's Carbon and fiberglass sandwich, as I said, with regular 30min epoxy. I'll strengthen it a bit with ply, only leaving a gap to flex, as right now it's too bendy, specially when hot. Also, I'll try some 5 degrees to the flex, so the advancing blade will get a bit of down incidence. I', not using bearings, it's just a 3/16 music wire inside a brass tube, with washers and graphite as a lubricant. Yes, plain old pencil dust, it's the best dry lube, and dust and sand cant't get stuck