RE: Carl Goldberg Ultimate. specific question?????
I can't imagine that the 1.08 is any heavier than a 120 Surpass or Laser 150 (both around 30 ounces). I have used these engines in the two Ultimates I owned/own, with no balance issues. In fact, the ARF/Laser 150 combo I'm flying now needs the CG moved aft a bit.