F5 LTM load balance method question

Hi all,

Currently I am deploying a set of BIGIP for load balancing weblogic server. I use iapp and everything is smooth. The client is using two server one of them is much more powerful.

However, I have set a ratio 3 for powerful server and 1 for the other. And the load balance method is ratio least connection. The result showing that the traffic is not 3:1 ratio... most likely the powerful handle less traffic.

Could you please advise if anything that can control the traffic load balancing more precisely.

Thanks in advance.