We've only done 4 or 5 Putricide attempts and haven't bothered with Blood Queen Lanathel. We go for gold and not progression so unless a fight is a gimme we won't bother. We start at 6pst and stop at or before 9pst both GDKP nights, whatever dies in that time frame is it. Last night we put one Putricide attempt in (~40%) and quit at 8:30pst with 4890g apiece and 7/9 down (DBW went for 30k to a PUG DK, caster haste trinket 25k to a guildmate).
We go in and figure if we have the DPS to kill Festergut with plenty of time to spare on enrage we'll try Putricide if time allows. Sunday we'll probably do 7/9 again and maybe hit up Putricide again if we have time. I imagine Blood Queen would be easier than Putricide if 10man is any indication, but with some of the bad (but rich) players in these raids neither one will fall over easily.
Hit me up Sunday if you're around and not locked. If we have room I'll try to get you in since people know you already from back in the day. I run the Wednesday raid though and not the Sunday one, so it's not my call.