Finally took the Rodriguez out for a shakedown ride tonight. I had noticed the derailleur seemed to be a little loose in picking up chain slack in the small chain ring when putting the chain on. The bike ride great and absorbed road imperfections excellently. About 8 miles into the ride I looked down and saw the cage was vibrating a little. I was in the middle gear of the freewheel and riding easy. Figured I could make it home. About 30 ft later I hear a pop and then a spoke brake as the rear wheel locked.

Great!

Turns out it broke at the pivot where the A B position bolt is located. Needless to say I won't go back with a first gen Chorus derailleur. I should stay with Campagnolo. But I really like all my Suntour derailleurs. What would you do?

Photo for effect