Wooden RC boat upgrade 12th run- racing prop

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Same cheap battery pack, 2:1 gear set - but testing a cut down 30mm 3 blade racing prop. (Trimmed to about 28mm). Good results, but a bit near to becoming a submarine in a left turn. A bit more bow weight off-set to the opposite side might cure it and stop the porpoise effect. Took some water onboard, so I need to modify the deck.