RE: Telmaster wing struts
There were two versions of the Senior Telemaster kit series. The original was patterned after the original German kit and did not use a D-tube wing type of construction (sheeted leading edge). These versions really do need the wing struts for additional strength.
For several years, Hobby Lobby had a D-tube wing Senior Telemaster kit built by Joe Bridi's company that did not need functional, load bearing wing struts if proper construction techniques were followed. While I favor this kit the most for hotrodding and sport flying, the aerodynamic characteristics of the non D-tube constructed wing favors lifting heavier payloads, even though the wing struts are then needed for safe flying.
Ed Cregger