Sorry about the delayed answer -- server has been down for a few days. Reasons for capacity increase in order: 1. Rotor bars set flat -- vertical leading component of bar teeth engages crop material more positively. 2. Enclosure -- Allows n1 since material can't escape to inside of rotor and rotor skin provides a little pressure to hold MOG against concave, grate, cage and helical surfaces. With most of the weight on periphery provides more inertia for carry thru in heavy going. 3. Sweep agitators -- provide a mild direction change over the separator grate to break up any clumps, allowing separation, and assists helicals in pushing MOG to discharge. 4. Elimination of discharge paddles -- leading corners of these, even though angled, retard the flow of MOG, especially tough vines. Main differences -- Our rotor is always full diameter (25"),bas always set flat, sweep_ agitators installed, discharge paddles eliminated, no reverse bars required. Gleaner (as I understand it) has 2 sizes of rotor, 1 (25")for small grains and 1 (24") for other crops. Bars (at least on 25")tiped at forward angle. Uses vine knives from Massey rotor as opposed to sweep_agitators. (side note-- we've installed Gleaner bars on a considerable number of Massey rotors, and no one has used these vine knives since on those machines) Reverse bars apparently required, at least on small grain rotor. Paddles on discharge end of the rotor. Cost -- I believe that we're highly competitive on this. Biggest difference may be that our rotor can be used in all crops.