great idea...I wasn't sure about mixing them...are you buying a vg flavored  liquid and pg flavored liquid,  and then mixing them together...or making your own with vg, pg, flavoring and the pure nicotine?  I have the ingredients to make my own, but didn't ever know what ratio to mix pg & vg....and I've never quite figured out if I'm supposed to 'thin down' the vg...like with vodka or something?  I'm going to mix up a batch of a mix tomorrow using your 70/30 ratio,  and see how that goes for a few days...hopefully this will solve the muscle aches since so many people here seem to think they are somehow related to pg and lactic acid...