Can anybody help me with this question, the Toro VARIABLE SPEED vs the PERSONAL PACE drives of the Recycler mowers, is one better than the other on hilly terrain? I should mention that I would be opting for the rear wheel drive models not the front wheel drive models...is one system more positive than the other? My guess would be that the variable speed 'locks-in' better than the personal pace...any help would be appreciated. Also, what is the fuel capacity of these mowers?? this specification is ignored in any Toro publication...and while I have your time answering questions, what is the big differwence between the 6.75 vs 7.0 torque ratings of the engine offerings? I imagine that there are other differences, that the torque is not the sole purpose of offering different engines, I would also imagine that it would be more cost-effective for Toro to offer one engine across the board. Thanks for your help.