I've seen hex-based arenas for other games, and I imagine you could easily adapt the current iteration of the rules to fit a 1" grid system.
That said, I think it would make the game feel more like a board game than a traditional tabletop skirmish, (Good/Bad depending on tastes) as you'll be counting hard spaces for everything, as opposed to the current methods. I also wonder if that would make pushes and the angling for pushes into hazards more difficult or easier since you'd have predefined spaces.
All in all, since we're just testing at the moment, maybe someone could give it a solid try and report back. I'd be interested in seeing what people thought as well...
**edit: also just had a thought, how would the larger sized bases work as far as a hex map goes in regards to melee range and such? I'm guessing they wouldn't fit as perfectly onto a grid like the regular sized based models.
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