[Shibby] MultiWAN load balancing utilized only single interface

Shibby 1.38, E4200; Two lines, load balancing weighted 1:3, between 25/10 DSL and 75/10 Cable;

Problems:
1. Speed tests shows max upload of 10, not 20=10+10; max down 75, not 100=25+75
2. Real-time Bandwidth shows WAN1 traffic=0

Tried different weights, 0:1, 1:0, 1:1, 1:2, 1:3, 5:12,4:15, same results.

Is this expected behavior?What other configs to test? How to confirm DualWAN is working?

Thanks.