To be fair, cooking down a small amount (say, 2 oz for personal DIY) couldn't really take THAT long could it? Reducing food-things in general is kind of a "put it on the stove over low heat and let it sit, stirring occasionally"...
As for gunking coils, there's a lot of reasons I use RDA's with cotton 95% of the time... it only takes 2 minutes to clean and re-wick.
So I suppose burning sugar is the biggest problem here...
I honestly figured it had been done before, perhaps I'll reduce a few shots of rum and see how bad it really is

Thanks guys