The use of thumb tape, either in the ball or on the thumb, is all about the matter of feel. There are no written rules as to where it goes in the ball. Front, back, sides, top or bottom. It comes down to feel. What feels best for one bowler may not feel best for another. The tape that you put on your thumb comes in various textures and thickness, and yes it is different than the tape that goes in the thumbhole. Basically, you have to put the tape in different places to see what feels best to you. Different spots in the thumbhole, different sizes, etc to get your optimal feel. When using your thumb, you get soreness in a particular spot, I would recommend having your pro shop operator take a look and adjust the size or pitch of the hole so the the soreness goes away.