We noticed in the spring that there is a hairline crack in the baffle on our Mt. Vernon AE Insert. Apparently, cracked baffles are not too uncommon. Does anyone know if QuadraFire has redesigned, or has plans to, the cracked baffle issue? Our dealer is saying we can bring it in and swap it for another one (has a five year warranty - ours is 10 months young) but we'd rather swap it with one that has less of a chance of cracking. Thoughts?