Well in reply to my question in the Revo Section:
"That's not a problem!
The software has the switchability built into it, when you buy the SPS it can be setup to suit your car (if it needs to be) but it won't effect the functionality of the switch having the software now and the switch later! "
So looks like it'l be fine
"That's not a problem!
The software has the switchability built into it, when you buy the SPS it can be setup to suit your car (if it needs to be) but it won't effect the functionality of the switch having the software now and the switch later! "
So looks like it'l be fine