Ollo Audio Studio Headphones impressions

Solderdude posted Ollo S5X review and measurements.:
https://diyaudioheaven.wordpress.com/headphones/measurements/ollo/s5x-1-0/
A lot of small changes noted including possibly different drivers. Appears to reverse course from the warmth of S4X.

Ollo produced video explaining some on how theyve attempted to recreate a target curve and experience more akin to speakers in-room.:

Spoiler

 

I have both the SX4 1.1 and the SX4 1.2 and I too prefer the sound of the SX4. It sounds more crisp (airy?) and less 'midrangy'. I asked Ollo Audio if it was possible to transform the SR4 with the the spare parts kit for the SX4 but they don't answer me back. Either they won't be bothered with these type of questions or their chat box doesn't work (or maybe it is me who doesn't know how it works). Anyway, I tried several times and got no response. But if you're sure that it can be done just by removing the SR4 parts and replacing them with SX4 parts, I'm willing to take the risk and tell you guys all about it.