Although the bike is barely six months old and the brake pads are very far from worn, I find the HS11 brakes a bit soft/spongy: I like the brakes to work with a short run.
Tightening the adjustment bolt didn't make much of a difference.
Magura suggests bleeding the system, but I'd first like to try and burp it, like I do on my other bike, with Shimano hydraulic disk brakes, with great success.
But to buy the right oil funnel, I need to know the diameter of the bleed port on the lever.
Does someone know?
Edit: Starting at 1m33s, this video from Magura show how to insert a syringe at the lever.
For just a filling/burping, it should first be filled with mineral oil before pulling the lever, hitting the cable + brake cylinder, putting the lever at the horizontal level and then at a -45° angle as a way to get rid of air bubbles.