The basic answer is:
Combine some good features of running gasoline, with some good features of running GlowFuel.
2parts Gasoline with 1part 10%nitro 10%oil Glowfuel = GGL GasGlow

No spark ignition RF interference - uses glowplug adaptor & plug
Less weight by removing ignition parts
More power than gas
Less slimey goop out the pipe than glow
Costs WAY less than running glow

That thread is a million posts long, but all the research/experiments they have done is documented in there. Good casual reading if you have the time. You can cut to the chase & hop in at page 20 or so, to where they start to hammer out the best solution