Thanks for posting this. My club needed to update the score sheets as we were making copies of copies.
I took the score sheet and made some changes to it. All you need to do is fill out the Stage info tab and the score sheets will self populate. It will automatically grey out any target lines that are not needed for that particular stage.
Since my club usually runs only 5 stages, I made special logic for the 6th stage. It will remain blank for reshoots unless information is entered in for it. To get the greying to work, there is some hidden white text under the procedurals that would need to be changed, but all other auto updating will work just by filling out the stage info tab.
To add more stages, either create additional tabs and update the links to the info tab or just save as a second file.