Voices in my head

This story seems pretty filled out, with the small exception of the StarGate direction. I've been trying to figure out how you'd get around it, with my limited knowledge from SG fanfics, but all I can come up with is that maybe if Methos and SG1 were returning at the same time and something happened, they might both go to the military installation. I'm not sure how Methos would leave though. I also would find it funny if SG1 returned and later saw "Adam Pierson" on Earth.