Bukkit 1.7.2 Dev Build Problems

I hate to make another post under this topic and add to the overwhelming amount of threads, but I've been requested by the players on my server that I should do this.

My server can handle well over 60 people, but it seems that whenever ~8 players join; the server lags out and crashes. It's the
Internal Exception: io.netty.handler.timeout.ReadTimeoutException

error, and I think it's partially Mojang's fault, too.
If this could be addressed in another build, that would be awesome, and greatly appreciated.

Also, some players told me that there is an error for beacons too. They say that certain buffs work, and some do not. For instance: Speed. They tell me it's very sporadic in when it works and when it doesn't. This might be a plugin issue, or another Mojang issue; I'm not positive (I'm just relaying information).

Thanks!

 

NickTheCombatant
What is a Development Build?
A Development build is provided AS IS and COMPLETELY UNSUPPORTED.

 

Its ok, he's just making a note to the DEVs, though this thread should be under a different topic.

 

I know this, but how can they create a functioning supported build without knowing what's wrong?

I had a feeling this was misplaced. Which topic should something like this be under (for future reference)?

 

I have the same problem with my server, someone please fix this