about BIG-IP LTM load balancing [ ratio(member)]

From what I know, whenever you do load testing, you wouldn't observe equal traffic sent to every member, this is because of the CMP feature of Bigip - Article

You have to perform regress load test to see the actual load balancing. Cannot judge with few traffic because different TMM's process traffic to different members based on the loadbalancing defined. If the TMM1 & TMM2 are processing, there are chances the traffic would sent to the same pool member. Refer the article above.