I'm not convinced, it looks more like poor path generation - the letters are made up of lots of short straight lines and not arcs, I'm not sure the built-in SheetCam fonts are much good for this type of work.

If it is backlash then it is what it is and not much can be done about that - it's all new and I'm not about to refit it :). It does not affect normal milling work so i'm not 100% concerned about it TBH, these letters are pretty small.

Will need to try text generated in another package before condemning it I think;)