Same here, JC. The teller did ask "What's this?" when I added the verbiage to the bank signature card - I told her "Oh, that's just my restrictive endorsement." She left it alone and I have not had anything questioned since. I frequently cash checks as well as use the smartphone app to make deposits with no issues.
I will echo your thanks to David Merrill, and include a thanks to Michael Joseph, for sharing this remedy!