I'm just reading the cam card. If I have no experience with a particular cam and a particular combination, when the card says, "do it this way" I do it the way the card says.
I guess "optimal" somewhat loaded the question. I just want the cam installed where the manufacturer recommends which I also thought was 107 until yellow rose said otherwise. Again, this is my fist time degreeing a cam so I just want to know what is correct.