Does anyone have a good technique for this?  For example:  if I plan on making 3Ml of a tester with 5% flavor.  I'll drip 3 drops on to an atomizer to get an idea of the taste.  Then I'll typically drop another 2 drops after a few puffs to taste it again.  
I've now used 5 drops of my total 3 mL bottle (so approximately 55 drops left)..If I thought the flavor was too weak, and add another few drops of flavor and I like the new taste better, how would you accurately track the new % you'd need to replicate that in a new 3 Ml batch? I hope there's a technique that doesn't have complex math
Does that make any sense? It does in my head, but I'm not sure if I'm explaining my question right.
	
		
			
		
		
	
			
			I've now used 5 drops of my total 3 mL bottle (so approximately 55 drops left)..If I thought the flavor was too weak, and add another few drops of flavor and I like the new taste better, how would you accurately track the new % you'd need to replicate that in a new 3 Ml batch? I hope there's a technique that doesn't have complex math
Does that make any sense? It does in my head, but I'm not sure if I'm explaining my question right.