Design question around slicing up an ASA 5550 and distributing load

[#1]

When designing an ASA5550 the following document confuses me a bit. http://www.cisco.com/en/US/docs/security/asa/asa72/getting_started/asa5550/quick/guide/thru_n.html If I'm trying to slice up this device for multiple customers I don't see how I can follow this design document unless I setup 2 public interfaces 1 on slot0 and 1 on slot1 then have the clients from slot0's public interface have a corresponding interface on slot1. This way the traffic traverses BUS0 and BUS1 as the document explains in the link above. Can I have two public interfaces like this?

[amritpatek]

According to the document the layout of the network should be such that traffic entering from slot0 should leave from slot1 and vice versa. This means that all connections should be redundant and connected to both of the buses. This design is for internal networks and not for Internet connections.