RE: Glo Bee Plugs Question
A neat thing about the GloBee type plug is that they eliminate the hole that a normal element is wound in and thus clean up the combustion chamber a bit.
On the other hand, you have a 'flat' with a coil in it in the middle of the head. I am not sure if that hurts or helps the head design. Like many other things with 1/2A engines, the scale of the flat is much larger than it is in a larger engine.
GloBees also need a good starting battery and engines with a GloBee plug are sometimes more difficult to start than with a normal plug.
Finally, because the element hole is gone, the compression ratio is sometimes raised and you may need more head clearance to keep from being over compressed and pre-igniting.