I haven't used my 3 point much, but I did notice a jerkiness to it. Is there a way to fix that? Recall or is that just the way it is?
It's too bad you didn't see the "Saga of The L-Series 3 Point Hitch" on PBS before you bought...
OK, enough of that, there are a couple of very long threads here devoted to the topic, without redesigning the tractor we've exhausted most if not all avenues.
Here's one of them:
http://www.tractorbynet.com/forums/kubota-owning-operating/135167-my-quest-grand-3-point.html
In my personal opinion, I think the valve allows too much flow into the raise cylinder of the 3 point hitch, or the flow isn't damped enough. The feedback linkage shuts the flow off rather abruptly, which is what causes the bounce.
I've toyed with the idea of trying to install a restrictor in the line going to the 3 point valve, but came to the conclusion that it would simply cause the flow to go over the main relief valve, since the restriction needs to be after the valve, but before the cylinder. The valve only uses oil from the stream when the position lever is moved to "raise", so any restriction in front of it is pointless.
I think the current tractors, my '09 included, have the most advanced valve Kubota has come up with for the economy L-series. The early ones were worse from what I've seen. The fact the Grand L's don't have the same problem leads me to believe the problem is in the cylinder and internal linkage design, not the valve.
The only thing that's going to entirely cure it, in my opinion, is a re-design of that part of the system, and evidently Kubota didn't go that far with the L3200/L3800 from what we've seen here recently. I approached my dealer about it last year, they were of the opinion that some folks had complained about it, and that there was no real "fix" for the problem.
Sean