FB - I think I will stick with my "early Troublemaker" theory.

The date on Mike's photograph is August 1970 so I am assuming it was taken at the 1970 Glenview Nats. Reading Art Schroeder's report on this event in the November 1970 issue of MAN he lists the top ten models/equipment. Tony Bonetti's entry is -

Troublemaker, Webra, KDH retracts, Kraft radio.

I guess there were several subsequent versions of the Troublemaker which retained the name buthad subtle differences. From photographs I have seen they basically got smaller and simplier. The version used as the J&J kit was probably the smallest and simplist - solid canopy, slab fin etc. Judging size from photographs is difficult. Models always seem to look bigger than they actually are.

The Intrepid is a very different beast. A bigger late 70's designwith anhedral stab and full depth rudder. as shown in your March 1978 MAN cover shot.

As you know I am a Troublemaker fan and mine is almost ready but those darn scale models I need to finish first always take longer to build than you plan for

Ray