Gleaner hasn't the engineering and technical staff to develop, design and test such a machine to the extent required before release to the market. They have toyed with many ideas to expand on both lines (Gleaner and Massey) of combines, however, no success other than augmenting what is already there. Most of the engineering and technical staff from either the Coldwater, OH plant or the Independence, MO plant opted for early retirment or quit to avoid moving to Hesston, KS. Therefore, development and mfg. has been rather bleak over the past couple years for combines. Most of the advanced engineering for Agco can be found in Europe via Fendt (tractors) and Dronningborg (EU combines, not much with NA Gleaner or XP Masseys though). Trying to produce a class 8 machine out of the current Gleaner design will result in a machine too wide (road width restrictions) and going with a larger diameter transverse rotor will defeat the effectiveness of the rotor, or any rotor for tha matter. Going with a longer rotor on the XP's (ex. White 9700 series) would be more practicle, however, power requirements to compensate for the parasitics associated with a hydrostatic driven rotor would require excess horsepower, leading to inefficinet performance at both the engine and rotor drive. The only two practicle methods of driving this system would be belt drive (Deere, CIH) or hydromechanically (CVT tranny). Not to burst anyone's bubble, but waiting for something great out of Agco's combine plant will have you waiting for sometime yet.