OK, I know this might be a stupid question but it's something I need to know once and for all. When you guys (gals?) use your tractors are you running at WOT or part throttle? I've always run all machines at WOT unless idling down to shut them off, or for a few minutes to warm them up. I've seen many posts around at other forums of people not running at full throttle. They seem to think that it'll blow up or waste gas maybe. I believe it to be worse for the engine to have any kind of load applied at less than WOT. Am I wrong? Doesn't it cool better, have less carbon build up, and less stress at full speed? What would the reason be to run it at 2/3 throttle? That has to be more stressful on the crank, rod, and piston right? Running at 2/3 throttle really isn't "babying" an engine is it? And since every manual I have for every piece of equipment from tractors to lawn mowers, log splitters, pressure washers,etc all state to run at full throttle, where do some get the idea that it's better to ignore the manufacturer and do differently? Enquirering minds need to know!