Joined: Sep 2015
Posts: 4,571
Likes: 2,525
From: Arcata, California, U.S., North America, Earth, Saggitarius Arm, Milky Way
Bikes: 1984 Araya MB 26L, 1992 Specialized Rockhopper Sport, 1993 Hard Rock Ultra, 1994 Trek Multitrack 750, 1995 Trek Singletrack 930
You might get more response from the Bicycle Mechanics forum. If it were me, I'd go for the certificate; it certainly won't hurt, and probably will help.