That combination will probably work but I would try tuning the reso head higher or lower than the batter first before buying new heads. Also duplicating the batter and reso also works depending on type heads. I tune them the same and rely on the coating of the head to control tone and duration. Tuning them the same will give max duration but allows for an even die out. The type head will determine the duration.
LOL!! I liked Brads reply, a man of few words. And I do agree with Paul.
Maybe I misunderstood the question but I do use matching heads on my toms. I used Fiberskyn3's for a while and recently changed to Coated Ambassadors which opened the sound significantly. Most of the time I work in small venues and it works for me. Next week I’m playing a small outdoor gig and we’ll see how that works.
BTW: I am tuning the toms at a higher tone than before. About a year ago a friend told me although your drums sound good up close but from out front they tend to get lost in the mix.