Alrite, above is the octave key assembly on my Yanagisawa 901 alto. Could I get a picture of someone's properly working octave assembly from that angle? It seems to me that there's a small gap on one of the parts, and it's causing a lot of play in the action when I press the octave key. It was recently repaired at a shop, but hasn't played the same since... They may have used empirical parts on my metric saxophone.
Also, good shot of my custom mother of pearl lyer knob; got it off of an old trumpet valve =)