Actually, I've done different. I went with the 7.5 meters per hex that was established in the RPG and Solaris 7 boxed set. Why? Because it is true to scale for the actual miniatures.
But, the reason is because I plan on a cross-over between MW:DA rules and standard BT rules.
However, I've contemplated ways of shortening the turn length so that MP expenditure remains the same, and devised a simple tracking system to allow for uneven firing of weapons between units.
However, I've found that the best place for this kind of play is on a field cluttered with all kinds of hindering objects, such as in cities, or in forests. For one, it limits range, irregardless of bracket. For the forest, large trees actually matter, and can take up physical space.
So, yeah, sorta.
In fact, I plan on going that route eventually. My group has tended toward smaller game engagements because that means we can hope to get one or more games done in a single afternoon. With fewer overnight spillage, we don't have to track position or leave minis on the table as often. So, larger scale for accuracy's sake is kinda cool, in my eyes.
It also opens up possibilities for infantry oriented combat where a single trooper matters more, once we decide on a system. AToW isn't looking that hot for what I had in mind, but I may use the damage stats.