Doc, that's one of the reasons that I converted to gas many years ago. Couldn't stand the mess. One reason for the mess is that typically the oil content for glow is 5:1 and for gas is 50:1. Of course these ratios vary but this is a good comparison. The tiny amount of oil that may show up on a gasoline powered plane seems to be a lot less sticky and a lot easier to cleanup. In the summer I do far more cleanup of bug splatters and grass stains than fuel residue.

Jumponin the fuel is fine,
Ken