Well Plumber, I made your recipe -vanilla. I only had about half as much caramel as I needed for 10mls, so I substituted a bit of butterscotch. I'm quick steeping it, so I'll test it for enough vapor. Actually, I only used 10% VG. I'm hearing that VG deadens the flavor, so I'm trying for less. That's quite a bit less than I'm used to, so I'll add more if the vapor isn't to my liking.
This is actually a new strategy that I came up with last night. I figured that I should make it with 100% pg, add VG a little at a time until I like it, and record my final numbers. I didn't adhere to that, but 10% to start should be fine. I don't think I'd be satisfied with less than that anyway. If I have to add VG, should I be adding flavor to compensate? I'm not worried about my final nic ratio. The reduction should be minimal, and I start with 24mg, so a little less than that will be fine.
Once I'm OK with what I've got, I should know in a few days how good it is. I'll report back. This is the first I've seen with butterscotch. I like BS, *laugh*, so I'll add it to my flavor order today. If it turns out fantastic, I'll make it this way all the time.
Edit:
I tried it, and the vapor is OK, but could be a touch better. I didn't taste any flavor at all. So, I brushed my teeth, and it tasted a little better. I couldn't discern them, but something is there. I can't really taste any apple though. I used twice as much apple, as each of the other single flavors. ie. 2 apple, 1 caramel 1 sweetener. Or, in my case, .5 caramel .5 butterscotch. Will the apple grow in strength or weaken?