Number of dives can be a very subjective guage. For example, I once knew someone who, in order to meet the minimum number of dives requirement for an ITC, would go to the same dive site and do dives that met the "minimum requirement" to be considered a dive for training purposes. He met the requirement, on paper, but did he actually have that much experience? NO!! I would far rather take a look at the type of diving an individual does is at least as important as quantity. IMHO, I would prefer to actually dive with DM Candidates before admitting them to a course so that I may evaluate their skills in the "real world". Their skills and responses are the most important things, if they are willing to learn, then academic deficiencies can be made up.