It seems to have been the coils in that blister pack. When I tried the one of the spares that came with my G50's, had no issues at all. I don't really blame the vendor, but they should try to ensure customer satisfaction (whatever it takes). Some had said that sometimes coils come with factory oil still in them, so they suggested a good wash.
I ended up rebuilding all the coils. Some at 1.5 and some at 1.8.