Comodo firewall + kapersky av 2010

is there any incapatibilites that are known? you can install kav prior to comodo in order to work with both. otherwise kis/kav will bitch about comodo being on your computer but has zero clue that only the firewall portion is installed. “obviously” they dont care because they want you to get rider of any other vendor to use their product over any other. personally ive experienced zero issues doing this but is it in any way affecting the performance of comodos protection?