5 WAN Load Balancing with 2 more new network

Hi,

Currently I’m using Mikrotik RB2011. It’s a 10 Port Mikrotik Router.

I already successfully setting-up a 5 WAN Load Balancing :
ether1,ether2,ether3,ether4,ether5 (WAN1-5) to serve ether6 (LAN1) network (10.10.10.0/24)

Now I’ve been asked to add new WAN7 in ether7 to serve LAN8 in ether8, and,
new WAN9 in ether9 to serve LAN10 in ether 10.

Is it possible?, because when i try to masquarade ether7 (WAN7) and ether9 (WAN9),
the LAN8 and LAN10 always only use the load balanced WAN1-5, never use their
own WAN7 and WAN9 respectively…

Can anybody help me?

Regards,
M777