[Al Skierkiewicz]

I agree with Ken here. There should be no reason to break a limit switch. You must remember that the mechanism it is designed to protect has momentum and will not come to a stop immediately. The microswitches shipped in our kits have long actuating arms that can be bent and/or cut to any form that is useful for you application. Design mechanical stops accordingly, backup the backup.
As for reed switches, I do not recommend them for this application. They have a bad habit of disengaging with vibration and magnets get knocked off leaving you defenseless. Additionally, the contacts don't always meet properly and high resistance occurs. With very little current being supplied by the RC, there is a source of error there. Microswitches are designed to "wipe" the contacts when they make contact, minimizing this effect.
If you are at an event where I am present please ask me to look at problems on your robot. I love to see other robots and what other teams have done to solve problems.