You will love this airplane, It flies wonderfully well and it's hard to beat for a hundred bucks. You have already taken care of one problems which is ca on the hinges. Ther were some cases of the elevator pulling off. I epoxied my wing together and epoxied on the tail feathers. Just makes for a stiffer plane. Install two aeileron servos so you won,t be trying to pack all the gear above the floor plate. This lets you install the battery under the floor. The front cowl sides will vibrate wildly if you don't epoxy in a cross brace to tie them together, just in front of engine mount. I run an OS55AX in mine and thoroughly abuse this plane and she hauls the mail. Enjoy.