Jhog

I want to use ceiling speakers (Klitsch CDT-5800-c) for left right and rear. Should I use one more of them as a center or can I use something like the Klipsch 440c as my center. Some tell me using the 440c will be a problem as the speakers will not be ‘matched’ and people/machines moving from far left to far right will sound ‘odd’ as the center is different. Opinions appreciated Joe