From what I've read, the primary goal was to cut it without thinning it very much, in order to pass the "bubble test". Consumers would test viscosity by observi

From what I've read, the primary goal was to cut it without thinning it very much, in order to pass the "bubble test". Consumers would test viscosity by observing how quickly the airbubble in the cartridge moved. Vitamin E acetate is thick enough to deceive people into thinking the cartridge wasn't cut.