The issue is that in reverse, the tractor will stop very abruptly when you let go of the pedal. Actually, it was designed that way due to some lawsuit, and it is also being seen in other brand tractors as well. From what I gather, there is enough customer clatter about it that kubota may be designing some way of softening up that stop somehow. I hope so, it is an awful quick stop, it'll snap your head back if you're not prepared for it. It is mainly in high gear and only in reverse that you get this, going forward is fine. I must say that I've learned to feather the reverse enough to help, but it still catches me off guard sometimes.
