I have used electrical tape in the past. Now with my Notos and Element, I took the rail off and shimmed it instead. One washer on the rear screw was all I needed.
I'm in se Iowa. Haven't been out for 4 days. It warmed up to -10 from -18 last night. -17 tonight "warming" to -2 tomorrow. I'm not leaving the house until wed. when it's gonna be in the low teens.