Probe Basic and Carousel ATC with Geneva and Stepper

I am a little confused of the slide forward (move in Y) on this setup? it seems the x axis is the only motion required for a tool change with regards to removing the tool from the forks.

Yes, to swap a tool for another tool that is the case, but my spindle was empty.

The carousel needs to move away to give clearance to the Z assembly during probing. Otherwise the probe can't reach X0 without the Z assembly running into the carousel.

If I would place the probe on the left side of the spindle, possibly the carousel wouldn't need to move away, only when it needs to swap for the toolsetter.

But the consequence would be not having full probing range on the end of X axis (without extending the gantry), which maybe isn't really an issue.
But I would need to find a way to block the spindle from going into the carousel work area during 'non-toolchange' events.