Dual Gateway/Dual Lan on single 750G

I can get around in the 750G pretty well for a beginner I think, however, I’m having some issues on this particular project…

I have 2 public IP’s that I’d like to assign to eth1 and 2. I’d like eth3 to be a 10.100.1.x/24 LAN that uses eth1 as it’s gateway and eth4 to be a 10.100.2.x LAN using eth2 as it’s gateway. Eth1 has an ip of x.x.x.12 with a gateway of x.x.x.9. Eth2 has the ip of x.x.x.11 with the same gateway to the internet.

I seem to have something working, I can get out to the internet sometimes, but it seems to drop connection although the mikrotik doesn’t seem to log the connections. The worst part is, I’m trying to configure this remotely over a VNC connection so I lose connection frequently due to the problem. It acts like a broadcast storm or routing loop.

I’ve added input and output mangle routes with connection marking for each wan link. Also added to entries for 0.0.0.0/0 routes pointing to x.x.x.9 as the gateway for both routing marks also. initially I followed this http://wiki.mikrotik.com/wiki/Load_Balancing_over_Multiple_Gateways

but when that gave me problems, I looked at … http://wiki.mikrotik.com/wiki/ECMP_load_balancing_with_masquerade

Is what I’m trying to do even possible? Can someone point me in a good direction with tips on how to achieve this? I generally use (and prefer) Winbox but am open to terminal also.