I don't worry about it at all. I get it all over the handle, with no negative effects. BUT, I've only done INFI knives - B11's and SS4's. I use a pick to gently scrape / remove the remaining coating near the handle, for a clean look.

[Linked Image from i99.photobucket.com]

JYD #121
The chief cause of unhappiness and failure is trading what you want most in life for what you want at the moment.