Sad to say, but if you're suffering too much with lag then just equip the noob tube. As long as it impacts somewhere near them it'll still kill them.
I hate using it, but sometimes it's the only way you're going to have a chance against 'fcuk off' deaths where you seemingly get shot around a corner!
I just found out the other day how much I hate noobtubes... I felt so dirty when I got the game-winning kill on Team Deathmatch with one, and everytime I killed someone, I felt an almost irresistable urge to apologize and explain that I was only do it for the unlock on my gun.
I think the "host advantage" was one of the reasons I had a marathon session last night. I had a such a good thing going, I hated to give it up. I started the night with about 5000 kills and around 5555 deaths for a .90 k/d ratio. By the time the night was over, I had raised that to 0.94. So that gives you an idea of the kind of run I had last night. And again, it wasn't like I suddenly got good at a game I've sucked at for months.
You've been complaining about .90?!? I'm sitting on .74, so

.