Send us a text The electrical engineers creed about soldering: "The bigger the blob, the better the job." The rock climbers creed about rope: "If you don't know the knot, tie a lot." These two sayings, unfortunately, summarize much of the recreational scuba training that is currently happening. Without an understanding of "why," instructors are showing students how to do skills and expecting them to fully learn those skills. That, however, is impossible. In this short carcast, Jeff looks a...