Please find the excuses for me not to buy Stax 009S headphone

I’ve had 4 different Stax headphones from brand-new, (2x 009, 009S, L700), and have heard a used 009 and two used 007. Also I was able to compare a brand-new 009 to burned in 009 examples. Unlike dynamic headphones, I’ve never noticed any discernible amount of burn-in effect with Stax. They should sound exactly "right", right out of the box from hour #1. Any minor differences in sound are likely to be from differences in pad conditioning over time (or different sub-versions in the case of 007, but not 009).

Also I didn’t pay too much attention to burn-in of my new Carbon when I got it; sounded great right out of the box though I concede there may be some subtle improvements over 200 hours. My DIY T2 also sounded 99.9% there right out of the box. Many builders will usually do some amp burn-in as part of their final testing.

But that doesn’t answer the question whether Stax burns in their headphones at the factory prior to shipping. Which I kind of doubt, actually. 

@geoffkait 
Yes, I have read Stax was claiming at least 150 hours of burn-in (SR-009 headphones) at the factory. This was said to be done not for sonic development, but for weeding out early-failure drivers, known by consumers as the infamous driver imbalance issue - which became problematic during early runs of the 009 several years ago. There was speculation the problem became worse with the new PEEK diaphragms used in the 009.

My original 009S (one of the very first) actually still developed the imbalance issue after several hours. It was immediately replaced by my dealer, and the 2nd pair has been perfect - it's possible they truncated the burn-in during the rush to fill pre-orders? I didn't have the issue with any other Stax headphone, but by the numbers the 009 production seems to have had the worst bout of it. 

I had been happy with my dynamic speaker Lansche 4.1 since 2007.

But I wish to try electrostatic one.

Stax 009S will not be played so loud as to hurt my hearing.

As former Apogee user, I am also attracted to  Raal Requisite SR1a ribbon headphone.

https://www.superbestaudiofriends.org/index.php?threads/raal-requisite-sr-1a.7283/page-4