[stormbringer3]

Filtered opportunity fire has been added since I last played and I need some help in this area!
1. The rules imply that you can have the normal Y fire range and filtered, but it will default to Y if they overlap. If I set filtered way away from the unit and then set up a close in Y, when I click on the unit all the filtered values are gone. That an I doing wrong? Also, the example in the rules showing setting up the filtered radius range is confusing to me. That -1 has me stymied.
2. When setting up the values in filtered to take on only heavier armor units would appropriate values be something like max 40, min 5?
Thanks for your help.