Great. Unless the paint was really thick, you didn't even need to scrape any off. The teeth on the NMO mount will easily make the necessary connection. Next stop, HF!
The one thing I'd wish Larsen would do, it ship the little bend wire tool to hold the center to make tightening easier. They used to send one with every mount. Folks who install these things all of the time, use the commercial version of the tool. I finally broke down and bought one.