That's pretty cool UndeadCircus. I've just now been able to drop some more after holding at 22 for quite awhile, but since I started at 48, I was still happy holding at 22.
I think you have every reason to be excited. 30 seems like a pretty big jump, but I think you're going about it the right way to make for a smooth transition.
I'd love to make it down to 22.. And I'm almost positive I'll be able to. It's just going to take some time.

And yea, the way I'm doing it, I notice a TINY bit of change in each batch I make, but after the first couple of hours of vaping it, my throat starts getting accustomed to the change. I have been a teeny-tiny bit moodier as of late (I'm sure my wife can confirm that haha), as I'm assuming I'm getting cravings for more nicotine. But I'm sure if I keep sticking with this, I'll be able to get my mood levels in check with time haha.
Once I make it to around 30/32mg, I plan to make a 50mg batch and take one vape from it just to see how much my throat has changed. It'll probably hurt like hell, which is sort of what I'm hoping for. At least if it does, it'll feel like I actually DID make significant progress haha.