Just wondering. Several months back I bought a 2008 ES with only 17 miles on it. Since then I have put about 200 more miles on it just around the property and love it. Yes, I get some clunky shifts and the occasional non shift that seem to be the main source of complaints with these machines. I’m about to get it rigged up for winter plowing duty. I will be changing out the shift motor grease as mentioned on this forum. I will also change the oil to a high quality synthetic as recommended. But, a lot of the ES problems seem to fall back to less than needed battery power. Is there a heavy duty, properly sized unit available?