I agree with you boys, stick to the breed standards. Personally I don't want all that extra weight in the boat. The AKCs standard for chessie males go from 65-80lbs. I know of guys who have them as large as 120lbs…WHY? Who needs an extra person in the boat? My 3yr old male is in the middle @75lbs. I know if need be, I can snatch him out of the water with one hand and into the boat.
I know you have heard it said "why you need a big dog for them geese" that's BS. My male was 9mths old, his first season. One day my sons and I were hunting, we'd split up Max was with me, a flock of Canada's came into my boys. They cut 5 out, 4 were stone dead on the water, one was swimming back to Canada. They yelled, "send Max" He hit the water, swam past the 4 dead and went after the cripple, I thought, " here's a test" he caught the goose and got wing whipped all the way back to shore, never dropped that goose, them made the other four retrieves. That convince me "bigger is not always better"