Hi chaps,
Couple of tips.....
I was completely unable to sort out the grid the background to match my click measurements so (with plenty of time on my hands) I individually placed my hash marks for the first 5 MOA of my 20 Moa turrets. So the first hash was placed at ref 0-0, with the next at 1.17, the next at 2.34 etc etc and so on. Then I highlighted the first 5 moa and the copied and pasted overlapping the end hash marks. For me this worked and possibly it will for others who's grid is not working.
Second tip, ensure that if converting to PDF to print (like I did), ensure your zoom is set to 'window' or 1:1 - otherwise you may have a perfect grid that's way way too big!!!
Worth the effort and thanks for the originally write -up!