Andy,

it sounds like from an APC standpoint, the 8x6E might be the right choice on this airframe with this motor. Otherwise it might be interesting to try the 8x3.8SF and the 9x3.8SF perhaps cut down to 8.5". I've never cut down an electric composite prop and I'm not sure what the best way to do that is but it sounds like it might be an interesting option.

Granted, it strikes me as though the 8.5x3.8SF would produce nicer verticals, slow the model down a tad but probably yield a more modern style to the model compared to the 8x6E. I'll give them a try when she's flyable.

David.