I ran across a table like this yesterday. I was the small blind in a full family pot, everybody had limped. Besides the fact that my pot odds
to call were astounding, I was also gonna be first to act.
I had purposely avoided the exact same situation earlier with AQor AJ, knowing it would likely get too hairy to continue.
But in this case I took my sooted 10-5 in, and hit the flushed flop. First to act with only a 10 hi I did not want any more action, so I potted it, and it was amazing to watch 8 or 9 players fold in succession. I got to thinking that had I been last to act or late to act, and anyone had made a play at that pot, even with my flush I would have had to lay it down.
Lesson; maybe position concepts get turned on their heads in big family pots. Maybe first in 'vigorish' becomes more important in a family pot.