That’s a lot of reverse if the wind is also blowing. If it’s a big boat you might be exceeding the mooring rating. I was once told 1500 RPM is about the same as a 40 knot wind. I set my anchor at 1000 RPM for day stops and 1200 for overnights. 1500 if I expect a blow. I don’t back down on moorings. I figure if it’s a sand screw type I am just pulling it out and it might come all the way out at 2am.