These triple O-ring plastic plugs solve the problem! Easily installed and quickly removed, now checking the points or inspecting the condition of your mag is a snap.
Sold as a pair loaded with -902 O-rings (same as used on Enderle nozzle jets), these plugs use a small side hole to allow easy removal with a pointed tool.
A dab of silicone grease is included to use on the O-rings so the plug pushes right in.
High voltage spark won't get past these and they stay put until you're ready for them to come out.