Your anchor should be independent of whether you use a glove or a tab. What were you using with a glove and why doesn't that work with a tab? You may be putting too much weight on the ring finger. Using three under, I only put about 15% of the weight on my ring finger. I'm not sure what it should be using split, but still less than the other two, I think.
For me, a well-fitting tab means that the string will brush against my fingertips when the arrow is released. Shawn evidently feels differently about this, which is fine. I developed a slight callous on my fingertips after I used the tab for a while, and now I don't feel any sting. There was never any real pain, but I definitely noticed it until the skin on my fingertips got a little tougher.