Those Kamtechnic heads are a thing of beauty!! They give you several glow plug options for Cox or most 1/2A engines and not have to spend a fortune I have some of the Nelson adapters and need to try them out. I don't have any standard turbo plugs so haven't gotten one of those yet. I have a Medallion .049 on a ARF baby Clown that will be the first test subject when the weather gets warm again next spring, and hope to build a few more this winter.
Type at you later,
Dan McEntee