I just bought a set of Boyesen reeds for my 85 Johnson 150 from www.bobsmachine.com ($134.00). Talked with Bob, and he suggested to do a plug test after I install them. Could someone explain the best way to do this while hooked to the muffs or should I do at the lake. I know there is a low and high test. Please reply or email me at bmurray@jcn1.com. Thanks