ORIGINAL: Constrictor

You are starting with a flawed conclusion from the start. Gas is NOT better than e or glow unless the only thing you consider is operation cost. They all have their uses and gas mostly on big stuff. Gas is heavier, more dangerous, smells bad, less powerful, can't keep the plane in tgw house because of smell and dangerous fumes that could ignite particularly if leaks occur. Overall less performance for the benefit of cheap fuel. Also throttle response is jerky on or off almost.