[adm]

I would choose 1 and 2, for reasons already mentioned.

Either 3/4, or a blend, for all the times the show has them track down instructions on how to do something.

8 for unexpected low level abilities found during the "adventure of the week".

In general, having something like the Ancient's gene, and/or a naquadah infusion, to use the tech seems like a good idea.

Question; Are you limiting this to SG:1, or will you include either, or both, SG:A, and SG:U?