Zippy is one of the companies that has supplied Happ since they left Cherry.  These 20g lever arm microswitches are the exact ones you will find others selling for a lot more.  Great response and reliability.

We put our numbers out there, front and center, NO FUZZY MATH!  This way you can compare and understand the different forces seen with microswtiches.  Look for people who report the weights to help you buy the right micro for your machine.