Hey, sounds like you’ve got the right start on pheromone use. Good job.
The combo question just happens to follow onto this thread started by Bosshank you might want to read it.
What you might want to do is think of it this way…A314, Ammo, and IG are the ones that are contain androsterone, they can act as your “base”. The next thing is the androstenols IO and IH. You might like one better than the other or you might even prefer CTTM2. Now a base and a 'nol is a perfectly reasonable combo, but you could add a situationally relevant “topper” of Ishine, IFM or TUTH. You could even leave out the 'nol and just use a base and a topper.
Think of the base as relevant to who you are, the 'nol as your social projection, open or more connecting (honesty just really isn’t quite the right word but it’s what’s on the bottle), and the topper should be relevant to the situation, shiny, comforting, or sexxxy.
As far as whether you should get IG and/or AMMO, it’s not needed but I think you’ll find as you go along that it’s nice to be able to switch around some. Hope this helps you develop your “instinct”.