Cisco WAN :: EIGRP Variance In 6500

Our customer wants load-balance across unequal circuits due to the primary link being saturated. Primary link is 10Mb and backup is 4mb (multilink 2 x 2Mb).

I have tried implementing this using ‘variance’ under EIGRP on the 6500 switch but can’t seem to get both WAN routes in the routing table - unless I use the same metric on the route-maps we use for redistribution – e.g. set metric 10000 100 255 1 1500
 
If I do this the 6500 sees both routes but I’m concerned too much traffic will go via the lower speed link causing more problems. I have adjusted the delay under redistribution to make the 4Mb less preferred and I see this under ‘show ip eigrp top’ and thought the ‘variance’ command on the 6500 switch would work. But no matter what I set variance to it still doesn’t enter the less preferred route in the routing table.

Topology is as follows:
 
____
       |----2800---WAN (10Mb)
6500]
____|----3640---WAN (4Mb)
 
We use BGP on the WAN and redistribute into EIGRP on the LAN using route maps as follows:
 
2800 (10Mb)
 
router eigrp 5555
redistribute bgp 888 metric 10000 200 255 1 1500 route-map bgp-eigrp
no auto-summary
 
router bgp 888
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