For the new year, I'll begin with a brand new reed. Old reeds are like old shoes; they feel great but are probably bad for your posture/playing.
I am a firm believer in plopping on a fresh reed and going with it. If it's in the ball park, play it for the day. Use good habits of support, embouchure and air flow to compensate for any limitations the reed shows. I recommend this experiment for practicing, not performances, though that could be attempted if a higher challenge is desired.
Happy New Reed to All!!