These are light gunships, with the lightest powercores and gun slots. Yet, after some comparison, I found that they are both as large as the Hathor, the heaviest gunboat.
I haven't flown the Conference, but the Montante did not seem any more agile than the Hathor, and its light powercore makes its lack of agility that much more of a problem. I found that I was jousting with the Hathor I dueled rather than being able to stay on his tail. If these are supposed to be light gunships, shouldn't they feel a lot more agile than the heaviest gunboats? Granted, I'm not good at pvp, but this is my impression.
Also gunboat missiles are pretty awful.. 200k energy per shot? That's half the powercore for one missile, whose damage isn't significant even to fighters.