This is for those hard core scientists out there! It's not for the faint of heart 
There is so much information out there for mixing along with calculators galore. For those that have painstakingly provided this information, I apologize for not being more diligent.
I am going to try and do this realtime in this message. Feel free to provide feedback please. Hopefully it will make sense.
I am going to mix 48mg of PG/Nic down to 24mg in a 3ml bottle.
I am thinking of taking 1.5ml of the PG/Nic + 1 ml of VG. Then using a dropper for the flavor to make a Blueberry Extra eliquid.
Those are the only ingredients I have. I don't have any extra flavoring, sweetner or anything like that.
So that would be
50% PG/Nic
~35% VG
~15% Flavor.
My guess is the 15% flavor might be to strong. So am readjusting to:
50% PG/Nic -> 1.5ml
45% VG -> 1.35ml
5% Flavor -> 0.15ml
Hmm. how to get .15ml will be tough..
On second thought, I probably need to measure how many drops to a ml with the dropper I am going to use, then since the total quantity is only 3ml, then simply use the dropper.
However based on recommended practices, the ideal solution is to test flavor without the nic to save money.. So I am going to try and attempt a no-nic formula:
80% VG -> 2.28 ml
15% Distilled water -> 0.67 ml
5% Flavor -> 0.15 ml
Going to plug these numbers into some of the eJuice calculators to try and get the number of drops.
Going to resort to an ejuice calculator for a non nic solution with VG, Water and Flavor:
I tried using an Android app for a no nic recipe but it kept insisting on a percentage of PG, which I don't have. This was eliquid Recipe Manager.
Resorting to eJuice Me Up Calculator... Not any good for me. I am a newbie. I can't figure out how to get it to stop giving me a negative PG ml/drops/% for a no nic dilluted VG mix.
Trying TW Calculator on Android..Forced close when trying to enter 0 mg strength. Resorting to slider mode... with 0 base strength, 0 Final strength, 5% flavor.
Result is:
95% VG 86 drops
05% Flavor 3 drops
But no indication of VG dilution with water.
Using my own calculator on diluting the VG at 15% distilled water.
80% VG 73 drops
15% Water 13 drops
05% Flavor 03 drops
So, I will try that and see if I like it. If I like it then I need to go with:
50% PG/Nic to get 24mg. 45 drops
45% VG 42 drops
05% Flavor 03 drops
Tried to confirm with android eliquid recipe manager for android. It still asks for a solution of PG and the drops are smaller but my drop size is based on TW's calculator, so that's not a problem. Just perplexed about the added PG.
Shoot tried to use e-Juice Calculator and it's showing negative PG needed. Weird, I just don't understand it.
Trying to confirm with TW calculator:
TW calculator says
50% PG/Nic 30 drops 1.50ml
45% VG 41 drops 1.36ml
05% Flavor 03 drops 0.15ml
What I don't understand about the TW calculator is it says 41 drops of VG is 45%, but yet only 30 drops gets me 50% PG/Nic. It's like it's telling me that PG/Nic drops are bigger than the VG drops
So, as you can see from a newbie perspective using all these tools, it can be difficult at first. And trying to create a recipe at 3ml won't be exact measurements. I might be approaching this totally wrong.
I am sure their are some rounding issues.
There is so much information out there for mixing along with calculators galore. For those that have painstakingly provided this information, I apologize for not being more diligent.
I am going to try and do this realtime in this message. Feel free to provide feedback please. Hopefully it will make sense.
I am going to mix 48mg of PG/Nic down to 24mg in a 3ml bottle.
I am thinking of taking 1.5ml of the PG/Nic + 1 ml of VG. Then using a dropper for the flavor to make a Blueberry Extra eliquid.
Those are the only ingredients I have. I don't have any extra flavoring, sweetner or anything like that.
So that would be
50% PG/Nic
~35% VG
~15% Flavor.
My guess is the 15% flavor might be to strong. So am readjusting to:
50% PG/Nic -> 1.5ml
45% VG -> 1.35ml
5% Flavor -> 0.15ml
Hmm. how to get .15ml will be tough..
On second thought, I probably need to measure how many drops to a ml with the dropper I am going to use, then since the total quantity is only 3ml, then simply use the dropper.
However based on recommended practices, the ideal solution is to test flavor without the nic to save money.. So I am going to try and attempt a no-nic formula:
80% VG -> 2.28 ml
15% Distilled water -> 0.67 ml
5% Flavor -> 0.15 ml
Going to plug these numbers into some of the eJuice calculators to try and get the number of drops.
Going to resort to an ejuice calculator for a non nic solution with VG, Water and Flavor:
I tried using an Android app for a no nic recipe but it kept insisting on a percentage of PG, which I don't have. This was eliquid Recipe Manager.
Resorting to eJuice Me Up Calculator... Not any good for me. I am a newbie. I can't figure out how to get it to stop giving me a negative PG ml/drops/% for a no nic dilluted VG mix.
Trying TW Calculator on Android..Forced close when trying to enter 0 mg strength. Resorting to slider mode... with 0 base strength, 0 Final strength, 5% flavor.
Result is:
95% VG 86 drops
05% Flavor 3 drops
But no indication of VG dilution with water.
Using my own calculator on diluting the VG at 15% distilled water.
80% VG 73 drops
15% Water 13 drops
05% Flavor 03 drops
So, I will try that and see if I like it. If I like it then I need to go with:
50% PG/Nic to get 24mg. 45 drops
45% VG 42 drops
05% Flavor 03 drops
Tried to confirm with android eliquid recipe manager for android. It still asks for a solution of PG and the drops are smaller but my drop size is based on TW's calculator, so that's not a problem. Just perplexed about the added PG.
Shoot tried to use e-Juice Calculator and it's showing negative PG needed. Weird, I just don't understand it.
Trying to confirm with TW calculator:
TW calculator says
50% PG/Nic 30 drops 1.50ml
45% VG 41 drops 1.36ml
05% Flavor 03 drops 0.15ml
What I don't understand about the TW calculator is it says 41 drops of VG is 45%, but yet only 30 drops gets me 50% PG/Nic. It's like it's telling me that PG/Nic drops are bigger than the VG drops
So, as you can see from a newbie perspective using all these tools, it can be difficult at first. And trying to create a recipe at 3ml won't be exact measurements. I might be approaching this totally wrong.
I am sure their are some rounding issues.