Originally Posted by
hamster
If you tried to fiddle with limit screws and cable tension and it didn't help, the next logical step is to fiddle with the B-screw. Screw it in a bit so that the RD hangs further away from the axle. Have you tried that?
Well, you nailed it. I put the 3-25 cassette back on, gave the b-screw a few turns and it works. Thanks! All these years doing my own wrenching and I can't believe I didn't think of that. There's always something to learn.