Great Job,
I might have to consider doing this myself!
IMO the SR-009 headband has a critical design flaw and for such an expensive headphone is extremely poorly made. Personally I have never experienced any issues with Stax build quality except due to age (ie 20/30 year old models) when the plastic gets brittle.
I have a set of 009's which are just 18 months old, and the plastic clips which hold the headband in place have BOTH fractured
They are used most days and are always handled with great care.
I believe this is due to a combination of the weight of the ear capsules and very poor construction quality of these plastic clips.
I would be interested to know if any other regular users of the SR-009 have experienced similar issues?