After Funken posted some side-by-side comparison screenshots I've updated the Flatten brush to work better. There are quite a few settings and modifications to this I want to try once the UI has developed to accommodate them.
In particular I need to work on 'flattening' of curved surfaces - so you can have a combination of curved surfaces and hard edges.
Improved Sculpting Brushes
Re: Improved Sculpting Brushes
This looks already much better, Simon. Great improvement.