Robert, The only problem I have with the Cochran scooters is the max thrust. Many caves require a Tekna at "9" to get any viable speed for penetration, and that generates somewhere around 50-60 pounds of thrust. The Baby Zepp has 90 pounds of thrust at max. I think I recall the Cochran scooters as being rated at 24-25 pounds of thrust. Plenty for open water scootering (non-tech diver with minimal current), but probably not enough for cave or technical use. John Submariner Research, Ltd. (johncrea@de*.co*)
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