table/seat selection

[gp?]

i have started only noting people i think are good, and i have some questions about notes, seat selection, and table selection:

when you see someone on 4 of your tables do you usually assume they are good and note them accordingly? or do you usually wait for hands to judge them? keep in mind, i'm 8 tabling.

when you see someone that you have noted is a solid player (usually some 2+2 pushbot), what is the best place to sit relative to them?

how many noted players does it take before you decide to not sit in a game?

any other game selection thoughts are appreciated.