Coming off of a 1k it should cut arm or leg hair at the skin level.
At the 4k level it should cut hair 1/4" above the skin.
You can also try slicing a hot dog with it. If the bevel is set, it should go right through nice and smoothly.

For me, a big part of honing is a smooth feel and an even sound. That's the only way I know how to describe it.