ok
first i see no mention of nicotine so i am going to assume you are making no nicotine testers.
Secondly 60ml of vg plus 10ml of flavor is not 10% its actually about 14%
so to take one of your mixes down to 3.5% flavor at max vg take 5ml of your mix in a bottle and add 15ml of vg
if you would like to try adding pg ad make a 80/20 vg/pg mix take 5ml of your flavor mix and add 4ml of pg and 11 ml of vg
first i see no mention of nicotine so i am going to assume you are making no nicotine testers.
Secondly 60ml of vg plus 10ml of flavor is not 10% its actually about 14%
so to take one of your mixes down to 3.5% flavor at max vg take 5ml of your mix in a bottle and add 15ml of vg
if you would like to try adding pg ad make a 80/20 vg/pg mix take 5ml of your flavor mix and add 4ml of pg and 11 ml of vg