Centos – How to change persistent-net-generator.rules to be PCI bus dependent and not MAC based

I am using CentOS 6.2 with VMware. I often have to clone my systems. Every time I clone it is adds a new rule to 70-persistent-net.rules file like so.

SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:0c:29:0c:f1:5e", ATTR{type}=="1", KERNEL=="eth*", NAME="eth1"

I never have more than one interface in my systems so this gets really annoying. I know there is way to change the rule to be PCI bus dependent and not MAC dependent, because I have done that already once but I cannot find anywhere on how to do it.

I understand the reasons behind this implementation of udev rules. It makes perfect sense on physical systems but on VMs it becomes an annoyance. Please help.