I have added 10 turns to the preload on my T10 and it handles the Ottawa potholes now. Not a full suspension but now fine as a city bike. The bike shipped with minimal preload that was bottomed out with just my weight on the bike and the fork was useless.
It looks like Gazelle sources the full suspension shock from the same supplier for the T10+ and the best fit would be to order it from Gazelle.
I can now ride up and down curbs now with the preload, but certainly not enough shock for trail use.