Your pulleys hold your tendon to your finger bones so it‘s unlikely it’s a pulley injury. Pulley Injuries sound more like a crack or snapping, than popping and have relatively immediate (within 24 hours or so) pain and swelling of the affected ligament. It could be any number if things, but if it’s at the base of your palm by the wrist my guess would be some sort of wrist/tfcc instability. Also could be like a lumbrical injury. If you‘re concerned talk to your physio or if you want to self diagnose hoopers beta has some very good resources on finger and tendon injuries for climbers.

Sanding down calluses and high spots on your hands makes skin wear evenly and reduces your chances of getting flappers. Wash your hands thoroughly after climbing and moisturize. If you have soft sweaty skin, products like rhinoskin or antihydral help harden up the skin, dry skin needs more moisture. I apply elizabeth arden 8 hour cream in the evening before going to sleep, probably one of the best creams for skin repair on the market. Other than that, taping preventatively when you feel your skin wear thin or cracks start to form. Healing a split is a pain.

Boulderhaus and Crimp in Heidelberg are top tier gyms, Studio Bloc in Darmstadt is pretty cool but setting can vary heavily. Boulderwelt is also a solid gym. Haven’t been to the one in Frankfurt but they’re usually quite comp/ dynamic movement oriented.

@Stefan Morgenbesser I always felt 40° was by far the softest angle on the kilter and for me the steeper it gets the more reasonable the grading gets, even though like 95% of the climbs are soft. Mostly the same stuff on the homewall, recently reset the wall to a mirror layout and changed the footholds so I haven’t had the time to fully feel out the new set, next week is my first proper session back so I’ll give more feedback then. Normal sessions for me would be Stretching and Warm-Up + Hangboarding so the fingers are fully recruited. 5 warmup boulders per side (10 if not mirrored) then either 45-60 minutes of hard moves/links or 45-60 of repeating hard boulders I’ve already done. I have pure projects I set with the goal of doing individual moves. And sometimes I set boulders I should be able to do in 3-5 tries. And please send in a Pic of your wall, always open to new inspiration.

Here’s a picture of my wall,

4-5 times a week works pretty well for me. I did 6 sessions a week these last 4 week and while I’m gonna be a lot stronger in the next cycle it absolutely destroyed me, I was feeling incredibly tired in the end and the only reason why I could sustain the volume was bc I was on Semester break and had no class work due. I’ve benn pretty happy with 3 focused training/board sessions a week and 1-2 technique/ social sessions a week. Plus some light stretching and zone 1 cardio.