Hi Rockclar
Most switches have some sort of spring in them which would be subject to g forces but not only g forces, vibration is another to consider. many don't spec a g force or vibration limit but some do. if not tested it can become a hope and prayer situation. below are some switch vibration spec ratings to consider. you will have to go search for the vibration and shock measurements.
You don't mention a flight profile which is hugely important, one solution does not fit all. Slow, short flights aren't subject to the same rigour as fast and maybe long flights. I know you are looking for what have other people had luck with.
Mechanical Ratings Vibration Resistance: Per Method 204, Test Condition B, 1 mS opening (10 mS allowed) Mechanical Shock: Per Method 213, Test Condition A. 1 mS opening (10 mS allowed) Thermal Shock Resistance: Per specification;
This is for a dip switch we have used in the past (and not suggesting you use this but to show it has a spec and the limits of the spec)
https://www.grayhill.com/documents/78-Datasheet
Spec test information I found here but I imagine there is an updated version out there somewhere, Method 202/213 and 204 are vibration method 214 is random
http://everyspec.com/MIL-STD/MIL-ST...IL-STD-202H_CONSOLIDATED_18APR2015.054374.pdf
Not a "I used this successfully" response but hopefully one you can apply to all your launches
David