I just put 80 hours on my L3200 with a slightly jerky hitch. Saw a L3301 at a John Deere expo yesterday... A few trivial cosmetic updates along with the emissions buttons & stuff. They had a
ballast box on it and when I fiddled with things it seemed pretty smooth to me, a lot more so than my L3200. It was almost in the same ballpark as the nicer cabbed John Deere's there I test drove.
I can only report the little bit I saw. It could just have been a good unit (not everybody with the L3200/3800 seems to have problems) or they could have actually fixed the engineering fault. I'm sure we'll hear soon enough if somebody runs into a jerky Lxx01 series.