I've always prefered servers focusing on quality players, so if some white name 250+ pinger stops playing I wouldn't lose much sleep. There are so few quality servers nowadays that I don't see it as a problem.
You've played on the BB server, which runs hitmode 5 boxes - do you see the same antilag issue on their server aswell? I think this is just the nature of the hitboxes and players shooting styles, hitmode 5 requires a player to be more percise and use burst firing as opposed to holding down the mouse and just aiming.
Now this is were antilag comes into play. My problem is when I start receiving body damage from a high pinger I almost have no chance in avoiding some of that incoming damage, the torso box is so big I end up receiving alot more damage then I should be.
There are people on the server, vent and here that have the experience to help streamline the server. I can have a look a the server config if you like.
Cheers