I added this wet inky Photoshop wash brush to the shop this morning. Start slowly with a soft stylus pressure and build on it by drawing back and forth to add more soggy ink until you have as much ink pooling as you need. Take care not to lift your stylus until you finish your stroke if you want to avoid overlapping edges. It’s edges sometimes look better in general with a bit of softening using either a blender or an eraser.