J-3 Cub, which kit?
Got your mail but could not get out. It is hard to choose kits they both fly great. I bought the sig because I was a sig dealer after I got it it, built real well and had no problems, build the landing gear with a forward angle and angle the tail wheel gear back to stop chatter. wings are built in two pieces and are joined with a tube, make sure you use the struts and they can be removed or left on in transit kit can be built with both clipped wing or standard . Parts for both are in kit , you can scratch what ever one you don't build with a few more ribs. I have a Mag 52 4 st in mine and flies great. build it light they fly like the real cub. Don't take any chances . GREAT KIT mount motor with head out right cowl.
Good luck and happy flying
Any other QS. just ask and some one here will gladly help or maybe I can get out on EM.