Hi Phil,

I just finished mine a few months ago with a similar setup and I think can answer most of your questions.

I would taper the trailing edge of the skins on the Pro wing. Mine does some amazing stuff. I have not tried it without the taper.

Epoxing the half’s? If again you’re talking about the skins for the wing I used foam CA to save weight. Epoxy will add weight quickly. Won’t hurt to epoxy it, but use a very thin coat. The spar is epoxied in.

Elevators were epoxied to the CF rod provided. It did fail once on a landing when the grass caught it on the counter balance because of to much deflection. I used foam CA on it to repair quickly and it has not failed yet.

The Eflight 400 will make this plane go ballistic, be careful. I am using the 370 with a 6.6 gearbox and it hovers at 1/3. Yours will likley hover one click above off...j/k. The 400 will be plenty and probably plenty for the supers as well.

The battery I use is the same one and a perfect match for my setup. I am using the 56 servos on mine but the 55’s are fine. The 400 is a lot for this plane and I would respect it when it comes to your servos. It’s going to be a little heavier and will be good outdoors. Indoor, you’ll need a little more space than I do with that setup.

I wish I had mine on video for you. It will do things I’ve yet to see other foamy’s do. It will to true flat spins, not around the wing tip like most, but around the axis. Amazing falling leaf and waterfalls. I have almost 80 degrees of throw on high and the normal 45 on low. You’re going to love this plane!

Ken