Just had another look at the video with sound up, the whine from the winch sounds like all Rotzler winchs fitted to Fodens (got quite used to that sound). It wouldn't be pulling anywere near full capacity as it doesn't look like there's much rope out, maybe the angle the video is taken at, I'd would love to see it with a heavy 2:1 on it when you put it to work. Also once the revs are set you wouldn't hear that much of a significant change in engine tone. Looking good though