Feature? When you turn it fast it goes few steps up then suddenly down. Not very nice feature IMO. To compare it to something really well made, have you tried some (Clavia) Nords which has similar endless knobs for fast/slow selection? In my Nord Drum for example it really works perfect; this small beat box has 100 presets and if I wanna go very quicly to either end 0 or 100, I just move the knob very fast. But if I wanna go, say from 66 to 67,68,69 this is very accurate too. If you don't know them yet try any nord with this knob and you know how it is supposed to work. Unfortunately Origin's big knob is far from that; what I am not sure, that is it broken or just badly implemented? Is there some user with perfectly working big knob or do all of us have this "feature"? Anyway from my two Origins my newer one has worse big knob than the older which has traveled a lot with me...