05-02-2016, 08:12 PM
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Ciderwright
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Join Date: Apr 2013
Location: Burlington, WI
Posts: 633
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Motor retention of the 29mm motor in BT60 is bit of a challenge. I dremeled all the ridges on an Estes retainer into grooves and still had some booster hang up issues.
I like the Gemini idea.
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