This is what happens when my present and current fandom disappoints me - I go back and look for the thing I'm missing.
In this case, it's the sense of team. So I went back and found Mirror Image by
sgcbearcub, which is a team-fic for Stargate SG1 - a young team, created in the wake of the events of the Season Five (Six?) episode where a clone of Jack gets turned into a teenager.
TBH, I was looking it up for a fight scene that I wanted - Young!Sam vs. Young!Jack, testing the limits of their younger, still-growing bodies when their minds are much older and more experienced - and I've ended up reading a lot more of it than intended...
Sure it's a panacea, but right now, I'll take it.