Er 8 loadbalance 7wans

Hello guys,

I did put 7 wans on my ER8 it seems to work..

Some question do i have to put smartques in all my wans in order to give therouter the max bandwidth per WAN??

Also i see that ot uses 2-3 wans and not the others.. Why?

With 4 wans i had better speeds 45-54mbps and know woth seven i have 25-30mbps...

The wans are 7 dsl 15000 mbps each!

Thank you!