I have neck hair that grows similarly, what I do is actually present the blade at a diagonal and make short strokes, as opposed to presenting the blade to the whiskers perpendicularly. It works for me.

I also tend to look up and work a bit by feel, which, as you've probably figured already even this early in the game, is a lot easier than one would think.
It makes the angles much easier for me at any rate.

John P.