Originally Posted by
hoss2006
Just a note on cutting thru the rear of the casting, when I did that on the old x2 base extension there was a noted difference in the distance between the dovetails where the cut was made. I measured it with a couple short pieces of ground drill rod in the dovetails.
iirc there was .010 from front to back, had to put in a spreader bar to get it back even.
Might not be as pronounced on the thicker g0704 base but still worth checking, if it needs spread a couple pins in your spacer could keep it true.
Hoss