Iím really enjoying using ArtRage, especially the oil brushes.

I have both ArtRage 6 and iOS version. Iím using AstroPad to connect iPad to the desktop so iPad functions like a drawing tablet. But even when I press the Apple Pencil really hard, the brushstroke still canít reach the full size (for example, with an oil brush size at 100%, the brushstroke probably only reaches 40%). The iOS version has no such issue once the stylus pressure range is adjusted. In the iOS version, the stylus pressure range (i.e. sensitivity) can be adjusted in Preferences:Stylus Preferences:Pencil Pressure Range. However, in the desktop version Preferences, there is no such setting. Maybe itís hidden somewhere else? I wonder if Iím missing something? Thanks!