I also got a Stallion .35 for my 1st "Big Engine". 13th birthday and my dad gave me a new shiny case Stallion and a S1 Ringmaster kit. Best birthday present ever! I still have the fuselage for that RM 35 years later, with a homebrew wing w/flaps and a stab 2x too big.
Stallion bit the dust in a Sterling Neuport 28- maiden flight. Here's a handy tip- if you balance a plane by sticking 2oz of lead in the bottom of the cowl, don't take the cowl off to adjust the engine- then launch without putting the cowl back on! A short, exciting flight that ended up with the engine case broken at the front of the lugs- dag nabbit!