I'd agree its a strange one, I mixed it at 20% not sure it's not too strong, what % did you use ?
I love the stuff. That and m&p callipiter chow are my 2 favourite flavours (not at the same time!) but they couldn't be any more different. I mix at 15% which is really nice. It sort of tastes like a nice wine or something. I believe it is meant to be a mix of herbs and port but I'd don't drink and, even when I did back in the day, port was never on my list of tipples! What ever it is, it's lush and very unique
I'll might "water it down" a bit see how it fairs I was getting low as well so it will make it go further as well
I've not measured it but, I've reduced it by putting some vg in, I recon its about 16%ish.... now will give it a go in a couple of days