Hello again Pastor Steve. I shoot three fingers under since I came back to recurves and longbows. The first thing I do when I get a new bow after trying it out, is raise the nock point a bit. Most bowyers ask you how you want your bow tillered most don't tiller for three under, all's you do is raise the nock a bit . Therefore if you are trying to switch to split fingers and you are shooting a particular bow well three under, you should theoretically lower your nock point a little.Try this just about the thickness of the nock at first and see what happens.