No, I do have a lot of heroclix maps though, infact more than SWMs and I have a lot of SWMs maps.
Heroclix maps are OK but the individual squares are just a little to big for SWMs. That been said if you have them and your play group is happy to use them why not. Just double check and make sure you are doing line of sight correctly. With the large squares on heroclix maps its easy to start making mistakes.
Anyway have fun if you do use them because that is at the end of the day all that matters.