Date: 2017-11-05 23:42
Actually, it looks like there are two bumpers involved, the one under the Bb bridge, which is there, but quite thin, and the one under the linkage from the Bb to the B, which is very thick. I would have to add a little thickness to both. Its not worth messing with before my concert. You are right, however, about the spring. I would hate to break it. It looks to me like all the lower pad bumpers could stand to be thoughtfully redone. A little out of my league. I would need to practiice on a flea market oboe for a while first.
Are there any good books about oboe repair that go into venting and setting linkages? Oboes are complicated!