The top side of the Elevons on my Roo II are hitting/binding (at times) with the top of the wing skin/lip. I heard this is a fairly common issue and I heard the fix was to use some clear tape on the top side of the Elevon .... so it will slide easier under the wing skin/lip. Wondering what is the best method for this fix. I am also concerned that that the tape may come off in flight .... and the Elevons will again bind. Thanks. Bob