PK,
Weights are nice. I use 4' JD cutter on a 2210. Like some of the guys here I use the cutter primarily for mowing around seedlings. It's nice to have the loader off for better visibility, but you need still something up front so you can turn. Turning ability always seems to be the limiting factor for me with these tractors.
My dealer sold both and I actually use Aeirens weights. They were cheaper, and heavier. I think I was able to get six thirty five pounders up front with no modification.
In my case, the loader works OK, front weights work better!
Joe