I wouldn't discount the value of smaller decisions. I played in a JEC v. BBF match some time back where nearly every swing in their direction was in single digits, and there were a lot of them. We got a couple of good scores our way but not nearly enough to be competitive. In looking at the results later I noticed the winning team was simply more active and made better competitive decisions, especially in partscore deals; game swings and phone-number penalties were not a factor. It's rare for a long match to be decided entirely by small-ball results, but I'd be careful not to put too much emphasis on the big scores. +5, +6, -11 keeps you in contention.