Hi Bobtem.
Have you tried messing around with the pressure settings? When I test this pen, I do notice that the smaller I make it the more pressure it requires but it also seems to respond quite well to small Shape Dynamics adjustments.
* First double-check your Pressure Sensitivity settings (tap the gear icon in the upper nav of the Home screen then from the menu Input > Apple Pencil > Pressure Sensitivity) and see if that makes a diffference.
* Also mess around with the Brush Settings (tap the slider icon at the bottom of the Tool Options panel and from the menu that launches tap on Shape Dynamics) and see if changes to those settings are useful.
Let me know if either of those produce a noticeable change.
Sue.