I am confused.
A Feb 2000 UA hire is around 9030-9050 on the current seniority list.
That would put you with about 60 other FOs junior to you in SFO in the 777 FO seat. And right at the bottom of the SFO 737 CA list.
That is not to say that you didn't get drilled by the double furlough and ISL, but if you really wanted 777 FO in SFO, you should have gotten the bid some time ago.