I don’t think 3 drops is too much A1 in a togo bottle. That’s about 125 mcg of A1 divided by 40 sprays which comes out to around 3mcg Per spray. Some people have used much higher concentrations of A1.
The half strength A1 is just as concentrated as the Full strength A1. The full strength is 10mg of A1 dissolved in 10ml of alcohol. The Half strength A1 is 5mg of A1 dissovled in 5ml of alchohol. That means the full strength has the same concentration of pheromone per drop as the half strength.
Here Gegogi calculated out the amount of A1 is the dropper that ships with LS A1.
I’ve combined NPA with IJ before and had a really good night. The mix is here. I haven’t done enough testing with this combo to really see how consistent it is. The night may have been a fluke.