Told you so
Actually noticing it is a very good sign though, the fact you realised and want to do something about it bodes well for future works
I haven't tested mine yet as it's making stuff as accurately as I need, though anything so far has been made close to the chuck & not affected by twist in the bed. The base it's currently on wouldn't be the sturdiest & I didn't see the point levelling it until I got a better base sorted out. Unfortunately that job has joined the 'when I get around to it' list and I can't find any round tuits!