Oddly enough, the one that I have (German style, bought a long time ago) has long time passing been relegated to the mouthpiece box. Even with the proper German reeds (stiff as a board), I never felt that it performed up to par.
For my Oehler needs, I've gravitated to a Vandorn mouthpiece, lay unknown, that works well both with the German style reeds and my sorry lip. Prior to the advent of the internet, I didn't even know that they offered them.