Hey there! I’m experimenting with that now and wanted to include some photos (I’m answering from my phone; Sorry for the odd answer format!)
I’m working over fairly light pencil work on very smooth paper. I’m finding that the pencil does make the drawing look a bit dirty (which is partially due to my lazy pencil work,) but it’s not smudging as much as I expected. I’d say as long as you’re not using a very soft pencil, it should look alright.

If anyone has a bit more experience with this, feel free to reblog with insight!