This is my first post in anticipation of buying a 2014/2015 Mid-Size Ranger Crew 570 EPS (my wife can drive it too). I live at 8600' altitude and plow snow on a steep driveway with two switchbacks. Currently use a 1996 Honda 300 4Trax with a 48" blade and tractor (when spring snow is heavy). Wondering if the 570 with a 72" blade would have enough power to plow my hill? Also, with four passengers and mountain travel taking us to just over 12,000', will it have the power to handle some fairly steep trails since some horsepower will be lost to altitude? Finally, anyone regret having bought the Mid-size 570? My old Honda has been bullet proof with almost no mechanical issues and I don't want a headache since we are 60+ miles from a Polaris dealer.