I recently went to a bouldering gym and came across these black (sloper?) rocks on a practically vertical wall. Does anybody have any tips for conquering a wall such as this, or know any good resources to help me better my technique for these unusual sort of placements (especially for footwork)?
You must have figured it out in the months since your question, but just in case: yes, those are sloper holds, and in my view, you need two things with them:
- Body positioning that ensures that you stay well below the sloper on which you have your pulling hand(s), with straight arms.
- Heel hooks, often, and toe hooks, sometimes.
This video will also tell you that you need more shoulder/core strength with slopers than with other holds, which checks out, given the two points above.