Planning on making up my first stab at changa.

I am thinking a 3:2:1 inert/spice/harmala blend (maybe a bit more inert).
I have some Mullein leaves for the inert, MHRB for the spice, and freebase rue extract for the harmala. I also have some dried lemon peel, lavender, and spearmint leaves that I want to in infuse into the solvent.

My questions:

1) As far as solvent I can get 95% ethanol and 90% IPA. I am thinking one of the two. Any opinion on which would be best in bringing the infusion herbs through and not impart too much of itself?

2) I know that lavender, spearmint, and to a certain extent lemon peel is strong. wondering what ratio to each other and to solvent would be a good starting place?

Ethanol would be the preferred choice because it dissolves harmalas better than IPA.

Mint is very nice herb to go a little heavier on, its smooth and refreshing. I like to go 3:3:2 Mint/mullein/blue lotus with my herb mix.

For the amount of solvent you use, put all your herb in a shot glass and mark where it fills to. That is the volume of solvent you want and well, maybe just slightly less. You dont want your herbs to be drowning. It should soak up a majority of the solvent right away so that it minimizes the amount of spice/harmalas being left behind on the glass after evaporation.

I have never infused other fragrances into my changa, but the level of flavor you'd like is purely subjective. Start with small amounts, try your changa, and then tweak it from there. You can always infuse more if it's not enough.