I think the patch has fixed pathfinding for the bosses at the very least.
I had heard Capra could be killed in complete safety from the ledge at the very end of the stairs, but just fought him first time and he could still hit me. Kept falling off, though. Got sloppy and took hits - the lock on camera was spazzing out and taking out the dogs took forever, but Capra himself was easy.
Before the fight, tried out helping people on the Capra fight to see what it was like. Unfortunately my first summon was invaded and the host ran away from the spot and the invader killed him before I could get there. Felt bad
After the boss fight, though, I tried doing it again, and got summoned consecutively four times, woo-hoo! I'm sure bosses scale in health as well with host level, because I got rid of the first three Capras in 15 seconds; the last one seemed doughtier for what looked like a high-level Cleric, but again, not tough.
So a question for DS-GAF: when summoned for boss fights, is there some etiquette you follow? I took down the Capras rather quickly, so the hosts probably didn't enjoy the fight. I changed my thing for the last fight, brought Capra down to 5% and let the host finish him off. Do you people hang back and support as needed, or just go all out? Wish there was some internal message-style communication so I could ask people what they wanted me to do in the fight.