Sorry it's taken me a while to post a follow up. Been a busy last few days. I don't believe it's the nicotine causing the pepper taste. It's more of a pepper flavor than taste. I know what the nicotine tastes like. It's a peppery "feeling" more than a taste. The pepper I am talking about is a strong flavor. It must be coming from one of the flavors that the vendors put in their juice. The juice I can think of off the top of my head is BWB Casablanca. When I first got it, the pepper taste was overwhelming. I let it steep for over a month. And while I will admit the pepper taste had toned down a little, it was still very strong. I ended up trading it for some cartos.
I have found a tobacco juice that I am absolutely in love with. It's the Patriot blend from Goodejuice. It's more of a sweet pipe tobacco, and is exactly what I've been looking for. I just wish there were more juices out there that were similar.
Thanks for the input everyone. I am on a mission to find out what the peppery flavor base is so I can avoid it in the future.