My tuppence worth, Stebbo, and some on here will say it’s crude, but as a long time operator of knackered small machines and owner of one getting-knackered small machine, there’s some good advice on here which works a treat with new machines with sod all wear on the bushes and pins. This is aimed at a gentleman who’s even older that Druid and not a professional operator.
However, if you’ve got wear for a start, put the bucket down flat on the ground to take up the slack, start to bring the stick in (l/h) until You feel the front of the machine trying to lift, then bring the r/h lever back a touch, just enough so the machine doesn’t lift. Try to keep the bucket level as you do so and you’ll magically have levelled your ground. It’s all about keeping a bit of weight on the bottom of the bucket. Other peoples mileage may vary, but it’s worked for me on some machines that frankly should have been cut up for scrap or sold to Rory to use for another ten years.
Or, as Rory said, use the blade.
(PS I do operate new machines as well, just not like this)