I do a premix of VG with nicotine in it already. I do it at 4mg/ml then when I mix my flavors in it I can mix as much as 25% flavor and be at my target of 3 mg/ml, otherwise I add VG to compensate when I've got the recipe down. It speeds thinks along when mixing and allows the nic and VG to meld so it hopefully speeds the steeping process. below are my steeping guidelines they change often but are a good starting place. You may have read them someplace else here on the forum as I've posted them multiple times.
OOPs Guess I ought to put the in
Fruits punches and sodas 7 to 10 days with a taste at ( if I can make myself wait that long) 3 or 4 days for initial taste.
Fruit mixes with alcohol flavors ie bourbon champagne, and rum 10 to 14 days. ( if I can make myself wait that long) a week for initial taste
Creamy things like milkshakes or cream pies pudding flavors 2 to 4 weeks depending on how creamy they are with a taste at ( if I can make myself wait that long) 2 weeks for initial taste
Creamy things that have custard flavors in them or alcohol flavors in them 2 to 3 weeks then evaluated and at least one more set of two weeks.
Bakery type items cereals, cakes, cookies, bars and bakery with fruit like jam flavors in them 2 weeks to evaluate and another two weeks for a final decision as to how much longer. Or to vape away
Anything that sucks leave for 6 to 8 months then give to wife to see if she likes it. lmao
I know it seems like it takes forever but remember
GOOD THINGS COME TO THOSE THAT WAIT
and my self guidelines have changed about ten times since I started down the DIY path and will probably change that many more in the next two years or so. I've got what I thought was an epic fail a "Hostess" lemon pie with ice cream that I made last September, wifey grabbed it by mistake the other day filled her tank took a few vapes and says to me WTF is this and why haven't you been sharing it with me. I was as usual in the dark took a few vapes asked her what she put in she goes I don't know the one with the light blue lid in the third row. I was pretty sure what it was and had been meaning to dump it out. Well we'll keep that one around. However it is one of those flavors that after vaping a couple tanks you've had enough for a while. I'll keep it in my active file but probably won't make it very often. It's almost 100 ml but only because I kept adding a little of this and a little of that trying to make it WOW well WOW time did it for me. Well enough of this book. Sorry I rambled on and on.