I eventually had to go to Bullhorn handle bars and raised my stem about an inch - I have slowly progressing Osteoarthritis with decreasing angular range - Raising the handle bars relieved much of the pain...

Some times you may need to forget the raw math and just move a few things around - Don't move anything more than 3/4" and only move one thing at a time - Be sure to use a marker so you can put the item right back where it was at - Take your time...