Finally got my WM extra in the mail. Starting as we speak.

Hey TOC, did you use the engine mount that came with the kit or are you using the back plate mount that came with the 52? If you used the one from the kit, did you use the isolation mounts?
How did it balance out for you...did you have to add weight to the tail.
I am using the TME smoke system and have a 5301 rudder servo. I am hoping that will balance it out. I think mine will be right at 16 pounds....hoping less but doubt it.

Got the control surfaces all hinged up and sealed and servos in the wing. Still waiting for my RC hardware. I will be gluing the stab on, don't like the setup on the removable stab world has come up with. Besides, it will make it stronger too. I've noticed a little play in the wing tube in the fuselage side. I will add some packing tape and take the play out. Also noticed that the hard plates for the control horns are a little off to the inside. I plan on putting 1in control arms but don't know if that will be 90 degrees from servo since I think the hard plate is off. Will figure something out. I will be using ball ends so it should be ok.
Other then that, kit seems to be good. Hopefully my RC hardware and engine will get here soon.
Let me know how she flys TOC
TJ