RE: TT 40Pro endplay?
Gary your description of the problem does not suggest milling the front bearing seat. It sounds like you need a shim between the crankshaft and front bearing inner race. Or maybe there was a shim there and you forgot it when you reassembled the engine. Now when you tighten down the prop nut you squeeze the inner races of the bearings toward each other which is the worst kind of no end play.
Denis