Ferg, too bad you didn't read the whole thread. It was mentioned earlier about making a dry run stabbing the elevator to see if both halves are the same. The steel "U" joiner can be bent until the're perfect. It should be OK. You'll have to try it and see. For 3-D, use the widest and least pitch in the recommended props for your engine. "Y" harness or separate channels both work good. You just will have less options with the "Y".