Al is right on...no point overthinking this. Gasoline has become super simple in the past few years. Simpler than glow by quite a bit.

One of of my friends who currently uses electric exclusively (moved from glow about 7 years ago) and flies top level aerobatics, is a past Nat's Champion. Dave was visiting yesterday and stated he doesn't miss glow at all. I had to agree. Gas is nearly as simple as electric, especially the lack of maintenance part.