Just getting started on my first kit, the Simple Cub. Trying to follow the build video for it. I ordered the B pack for mine and the video is describing the C pack. Got to engine take apart and install x-brace. My engine (2213) does not have x-brace. Got to looking at bubblepack motor was in says for copters. The bag said fixed wing b-pack. Any chance I have wrong motor? What should I do?