At the Dark Horse Rendezvous we went down to do Morocco with a bit of a crowd, spending some time working on deadman anchors at the start. Then we had a mishap at one of the pools. A pool. The water was murky of course, so the depth could not be assessed. We had been dry to this point. After the first two persons, medium to tall young persons, bridged over the pool fairly easily. The next person in line was of diminuitive stature. I arrived, just as the diminuitive person got to the wide part, which required a full extension bridge. Alas, too much of a full extension. She first stalled, then moved slightly, then decided to jump down. Unfortunately, the pool was shallower than expected (less than knee deep) and the landing was awkward. The result was a mildly sprained ankle (we hope). Analysis: 1. Judging climbs by how other people do on them CAN be problematic. It is important to see or not see a successful route based on your own body and skillset. 2. Then again, one develops a skillset by trying things when consequences are low. With about the worst possible landing, limping away with a mild sprain is acceptable. Comments? Clarification: The bridging was at about 2 feet above the surface of the water. Such a short drop, she did not have time to get her feet under her.