I've been filling my REO and a MAP tank on a Provari lately but I have thrown my GJ in everything. Different setups give me different result so I go with what I'm in the mood for at that time. Boge cartos for instance is my go to when I want a nice stiff vape with GJ but if I want a smooth sweet vape, like after dinner I go with the MAP but the REO at 6v is my coma inducing monkey crack pipe 