Suspension & Brakes - Line Locks

I have one installed but the momentary switch somehow went flying in the car while it was sitting in the sun. Guess the spring couldn't take the heat. What switches do you guys use that can take the heat sorta speak...

http://www.sjmmanufacturing.com/parts/2B001-sm.jpg

The little red button is the thing that flew off, it's connected to the red wire from SJM.

Does anyone know or those of you with line locks use the same kind of switch?

I used a Hurst sidewinder shift knob, it had a little red button. I used that setup for a few years in my daily driver and had no problems.

That looks pretty cool but I still want to use my mba billet shift knob, I'll try to take a picture of what happened to the momentary switch.