Have noticed this a bit recently since the 957 went back together. I am sure it is the 14 year old original BB, and I am also using the original crankset I believe. I have felt a tiny amount of play when pulling the crank back and forth. Is there a good chance the play and the creaking is coming from the BB which needs replacing? The audible noise definitely is coming from down in the front mech/pedals/gears, kind of area..... know what I mean LOL.