Just wondering why going through all the effort of weights. I understand the flexibility of being able to remove weight for certain tasks, and am sure it all depends on you specific needs, but here is some food for thought based on my experience.
I have the TC24D with turfs. When I bought it I "knew for sure" I did not want loaded tires due to my very soft and wet mowing requirements. Within two weeks I took the tires back to the dealer to have washer fluid and tubes put in. It was just too light even with a back blade attached. The turfs took about 20 gallons each, or appox 160 lbs each. Big difference in feeling safe!!! Turns out the extra weight made no change in the tracks left in the lawn from the rear tires, in fact it reduced the rutting caused by the front tires now that the tractor was better balanced. I have not since wished the rear end was lighter at any time for any circumstance, and the machine is safer and performs better.
My point is you might want to consider an alternative. I have 75 lb weights on my Gravely and even those are a PITA to take off and replace in the event the tire needs removing. All depends on your situation. If you have R4 or R1 tires and are concerned about the lawn, probably a whole other story. Just thought I would try to confuse your problem a little more /forums/images/graemlins/tongue.gif Where abouts in NY are you?
Brad