Hi,
What i ended up doing (i couldve just go back to PFsense) was putting a small router infront of the second WAN
so my config is WAN1 = -> WAN1 Modem
WAN2 = Mini router (10.x.x.x ip)->WAN2 modem
So in short i had to make one of the 2x ISPs a double nating solution by puting a router in front so that it can dish out a private ip other than 192.168.1.x
Regards.