Art, it's simply a time issue. When it snows and I need to clear the driveway (+500ft) and I am finding that there is not enough time to properly warm up the tractor prior to using it. If I get up at 5am, I have about 1.5 hrs to get the job done and still be at work on time. If I take 20+ minutes for warmup, that dosn't leave much time to do the job. (I still haven't fixed the barn door that I crunched during the last snow removal party!).
Rich.