I mix a lot of juice and its in a number of different recipes with pg/vg ratios all over the board and for tank and drip. So, here is the easiest way I have found to mix a good bottle of juice assuming you have a good or better recipe. First of all mix a big bottle of your recipe (flavors only), say enough for 5 or more bottles. Label that bottle whatever name you chose for the name of your juice, then
1. Take your flavor only bottle and pour into a cylinder the number of ml of flavor you need for a bottle the size your making. Pour into your juice bottle;
2. Measure into a cylinder the number of ml of pg, if any and pour into your juice bottle;
3. Use a syringe and carefully measure your nic amount (6mg juice needs .6ml of 100mg/ml nic for example in a 10ml of juice) and squirt it into your juice bottle;
4. Use a syringe and measure into that syringe the amount of VG you need and squirt into your juice bottle; finally
5. Install a tip and cap and shake n vape or let steep.
P.S. Until your skills improve a lot, you need a juice calculator to create a safe recipe. Always write your recipe down in your own recipe book. Notice I used the terms flavor bottle and juice bottle. These are different bottles with different purposes. Lets say you buy a flavor banana creme and you then mix caramel, vanilla, coconut, custard and brown sugar flavors in enough of a quantity to mix 10 bottles. You no longer have banana creme in the flavor bottle etc, you have a flavor you created (insert name of your juice). You have simplified your recipe to one flavor (name of juice), pg, nic and vg. Best of luck n have fun.