Weights are great, BUT, I am convinced the 1X8 I had gave me clutch difficulties because of the loaded tires.
The 14HP K321 would just overpower the clutch!!
I feel hydros are OK with the extra weight.
The cast iron weights are 26# each, the limit of what I would add to a gear drive wheels.
Just my opinion, and I operate on hilly land, very different than flatlanders!!