Sorry Ross in this instance i would have to disagree
No need to apologise, the more opinions Mike gets the better.

Swapping it over as i said would result in the ballnut being roughly in the same position,
Yes but it would need a link arm or bar to connect back to the bearings hence lever arm. It just seems odd to me that people use ball screws to rid of backlash to 0.01mm and then mount them in systems that deflect more than that.

I still agree with Jonathan and don't see why you would risk compromising machine ridigity just to keep a ball screw clean, that's what guards are for

Any way i think this point has been laboured enough and mikes happy to keep his tool clean......