Well I wasn't having that problem, that I noticed yet, but my Hart Design plate, because how I have my table hinged on my cabinet (lifts up like a car hood), I had to add a couple of hold-down screws to it. When I would have the table raised, and I was inserting or removing a bit, my router and plate would jump out of place. So I added two #8 flathead screws through the plate and table, and used wing nuts under the table. I don't pull down hard, just a tad. Maybe something like that would help you too. Although, the idea of the finger nail polish might work well for your problem.