Firewall sandwich

I wonder if that is correct modification for schema in LB101. Scenario: 1. Two applications using 192.0.2.5:80 (App_A) and 192.0.2.6:80 (App_B) 2. Each application should use separate FW pools, lets say App_A FW_pool_A (172.16.2.10-12), App_B FW_pool_B (172.16.2.13-14) 3. Of course each app balanced (on ADC2) to different set of web servers Pool_A (172.16.4.10-12), Pool_B (172.16.4.13-14) Implementation: 1. On ADC1 two VS, VS_A (192.0.2.5:80) with FW_pool_A, VS_B (192.0.2.6:80) with FW_pool_B 2. FWs in each pool using same DG 172.16.2.5 3. On ADC2, VS_A (192.0.2.5:80) with Pool_A and Last Hop Pool set to FW_pool_A, VS_B (192.0.2.6:80) with Pool_B and LHP set to FW_pool_B (of course FW pools are now defined on ADC2 using IP from 172.16.3.0/24) 4. Servers from both Pool_A and B using DG 172.16.4.5 5. Routes on both router and FWs staying the same. Is that OK or not really, could be done smarter? Piotr