Any non-motorized faders will give you the same problems, but there is a decent workaround...
Just before I make a registration change, I yank ALL the faders down to zero. Then I hit the registration button. At least on Roland's, the values on the faders don't change until you pass THROUGH the preset value, so at least you don't get a 'jump' in values. And I don't have to guess whether the fader is above or below the programmed value... I KNOW it is below!
It's not perfect, but what is? And before everyone starts jumping on the 'why don't we have motorized faders?' bandwagon, firstly you have to realize that a good, robust set of motorized faders is going to add mucho dollares to the cost of the unit, be quite bulky (there are VERY few small motorized faders out there) and add a whole degree of new problems that may occur. Not to mention noise... You HAVE heard the noise that inexpensive motorized faders make, haven't you?
I think the new Korg's have the answer, at least for the Hammond drawbars... Correct me if I'm wrong, but can't you change a draw-bar's position simply by dragging on the touch screen graphic? If so, extend that basic idea to ALL fader operations, and you never have to worry about jumps again...
Touch screens get larger and less expensive every year. I see this, rather than delicate motorized faders as the future for fader control...
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An arranger is just a tool. What matters is what you build with it..!