The first switch - when the knob is all the way in the dash lights remain on. There is a "sweet spot," a fraction of an inch out, but miss it and the battery's gonna die.
The second switch - the catch doesn't work; won't grab the detent on the knob shaft. I tried a gazillion times with every permutation I could think of.
The third switch - I'm no fool. When it showed up I tested, and yes, the switch grabs the knob shaft. It just WON'T LET GO! That spring-loaded button will NOT release it.
I'll look for your tech tip!