3750 as a router and a switch. sub-optimal routing problem

Question

Objective: To limit the traffic on Vlan8. We are seeing traces from K1 or T1 to 192.168.1.4 like this:
1- 10.10.10.5
2- 10.10.20.1
3- 192.168.1.4
then
1- 10.10.10.4
2- 10.10.30.1
3- 192.168.1.4
or
1- 10.10.10.5
2- 10.10.200.1
3- 192.168.1.4
this causes the packets to travers vlan8 once to get routed by P61B then switched back across to reach the next hop 20.1 or vice versa.
How can we avoid this behavior?
Study the attached drawing carefully. Vlan 8 has 4 routers on it and the 3750s have routes to the 4 networks above them. packets are not routed between the 3750's

Answer 1

Hello Todd,
Could set up a debug ip icmp on the router 192.168.1.4 and ping it from both T-1 and K-1, I think this problem would be more clear to everyone.
If not mabybe you could provide the output of "show ip route" on the routes on this issue,at least on the routers/switch 192.168.1.2 , 192.168.1.3 and 10.10.10.4 and 10.10.10.5 and T-1, K-1.
for routes like 192.168.1.4, 10.10.10.2-5 and 20.20.20.2-3
Hope thats not to much info.
Thanks,
Vlad