am I "supposed" to dilute my pg/vg nic base? with distilled water? does that just basically "stretch" my supply or are there other reasons? so far I just use a 50/50 pg/vg nic base without diluting, and really don't mind buying it, much much much cheaper than the smokes I quit buying. but just wondered if it helped with wicking, and also wondered what ratio to dilute if it is something I should be checking out. Do the pro vendors use water and dilute the stuff they sell? also, since the flavor additives thin out the base a little, you would have to take that into account also when using a recipe/calculator? as always, thanks in advance.