Thor, or should that be Zeus?

[Chaz]

Chaz I think you are getting bogged down with all this. When you home the machine the software knows that you are homing and therefore treats the switches as (homes) when the machine has homed the software then treats the switches as limits.

In your case you will have plenty on inputs so why not keep them separate. (it is also OK to use just one switch for home and one end limit)

Thanks. The penny dropped, just never knew this before.