Hey! You guys trashing my J.B.?
While I wouldn't use it on control rods, well maybe I would , It does have many uses in the hobby.
I once fixed a broken case on my ST 60 to hold the carb in, and it held for the entire time I used the engine! I really didn't think it would, but I was amazed. You really need to clean your surfaces with acetone, MEK or Laquer thinner.
I have also made muffles using it, aluminum tube, and a hairspray sample can. Just my 2 cents.

Jetts