Jackie has touched on something here that's very important.
In Score shooting, you move the gun
a lot. Because of this, you need to have a rest/bag/stock combination that's both forgiving as the angle changes
and tracks well. That's not as easy as it sounds. At any time, you need to be able to drop down to the sighter...crossing over from left to right for three targets...hit the sighter and then go back to your record target with complete confidence that the POI won't change and that you can trust what you saw on the sighter.
Some stock styles just don't play well with this type of target. Ditto some bags. As always, it's the combination that matters.
This is a Score target of mine from a couple weeks ago at Webster City, Iowa. I did the cipherin' on the target spreads...will leave the final total to those interested.
Good shootin'

-Al