The big brown truck showed up last night with some new props. I am getting 1672W on the APC 20x8E. I bet down in Sacramento you would be over 1800W with the same set-up. I think it should be fine now for power, I might still be a little aft on the CG. I might add a spinner for some extra weight up front. Just for fun I put the plane together and powered it up in the garage, I could let go of it and it was hovering at a click over half throttle and at 3/4 throttle it was climbing out of my hand.