Two things:
1) We saw the LA Phil (9 basses) last night play Miraculous Mandarin, Petrushka, and a new piece, equally challenging, by Salonnen, who conducted. Good lord what a workout and that section was BRILLIANT.
2) I've stage directed (my day job) more operas than I've played, so I'm pretty familiar with the repertoire. The community orchestra where I'm principal is doing an "opera gala" in June (mostly Italian and a bit if Bizet) -- and of course we haven't seen the singers yet.
I took a sectional with the team and basically "sang through" the pauses where there would be rubatos or fermatas etc -- it just looks like a couple of pizz notes every now and then but you have to be on your toes; it becomes second nature after a while.
3) (I know I said 2, but..) Earlier this week we saw the LA Opera do Verdi's Otello - THAT section nailed it -- especially in the DB solo/soli that begins the final scene!