I like the Fusion too, but it is no good for trimming sideburns. I use an old Shick injector for that. Best shaves I ever had were from a straight razor, but I never learned how to use one on myself.
“I like the Fusion too, but it is no good for trimming sideburns.”
You do know there is a blade on the back side of the Fusion specially designed for sideburns, right? I use it for edging around my goatee as well. Works great.