[syslog-ng] One destination, multiple TCP connections?

Hello, We have a syslog TCP destination that receives logs from many different destinations. During peak log volume times, this destination begins to back up and queue. We've found that if we define multiple destinations for the same IP/port and route logs through these multiple destinations, the destination is able to handle these peak log volume times much better. Our current solution of having a destination for each source is pretty kludgy. Is there a way to define a TCP destination and specify to open, say, 10 connections to the destination and load balance the traffic over those 10 connections? Thanks. Steve