Suppose my sweet spot for IS is 3 sprays and 3 for IG .
If I want to layer those two as a combo, do I have to go through a testing phase to see what works with them too?
If so, do I go like:
day 1. 1s IS + 1s IG
day 2. 2s IS + 2s IG
day 3. 3s IS + 3s IG
day 4. go back to day 1 or 2
day 5. go back to day 3 and reapply half of it halfway through the day
^ all you need to get started in finding the sweet spot or what i personally call “the biting point”
L M 
Thanks but I’ve read that already. My question is what if I want to wear more than one pheromone? do I have to test that combination from the start or do I simply wear each individual mone at whatever my sweet spot for that specific mone may be?
Well in theory it’d be better to test each and every mix you try but theoretically you should always use your sweet spot for each pheromone you use.
However if you have adverse effects you should try the sweet spot for the whole mix you use instead of each one if its not giving you the results you need.
My concern is that, whether or not there is a big difference in using separate mones individually versus using them together. and what effects this might have. If its all the same then I could simply apply each individual mone at its individual sweetspot.
Yes, in combo, some pheros do amount to more than the sum of their parts, so knowing your sweet spot for each individually in advance does help - For one thing it gives you an idea on how to vary the relative doses either way if the results are inconclusive.
Another thing to remember is that some pheros contain common components - eg nols common to Ammo, IO and IH. so having an idea of how you can handle nold in one product can help you avoid doubling (or more)-up when using other products with similar components.
Also worth doing is reading what similar combos have been tested here already. Whilst the number of sprays/mcg dosees may well vary between individuals, often the actual proportion of one phero to another can be remarkably consistent between testers.