Mechanical limit switches - acceptable practice?

[bmammen]

We were wondering if it’s an acceptable practice to have a second normally closed limit switch wired in line with a motor and sitting just a little longer in the throw, past the electrically monitored limit switch as a safety precaution?

The reason that I ask is that last season we had two instances where our software controlled limit switch either didn’t work or was physically knocked off center causing a very strong bag motor with planetary gearbox to bend and break our launching mechanism as it didn’t shutoff the motor at the end of the throw.

Any suggestions?