Now the quoted post is pretty much in line with my thinking when comparing glo engines to gassers. They are completely different animals for the most part with very different torque curves. Nobody ever seems to discuss torque much when talking about model engines. There are many gassers on the market today that are for most purposes equal to their glo cousins, even given the same displacement. But in many cases, the gasser will way out pull the glo engine when the correct prop is used. I have re-powered several glo powered planes with gassers and in every case, performance was improved. Why? Because the gassers are able to turn a much larger diameter prop and the larger prop disc is just more efficient at pulling an airplane.

Certainly this is an oversimplification! But for my money these days, I'll stick with the lower RPM purr of the gasser over the high RPM whine of the glo engine. Being an old pylon racer, I live the sound of a high RPM racing engine but not when there is work to be done.