Your point that both dacs should have the same mods makes sense, I will ask my friend about that.
After seeing this argument between you and George. I just clicked on your profile From a quick browse I see that every single post you've made in 2016 on this site is about Gustard and updates to it. Then I noticed that you are a professional and the first thing on your homepage is doing updates to the Gustard.
Not that any of that convicts you of anything! Just saying that it is good practice here (and I thought Agon policy) to sign your posts such that it's clear to all readers that you have a business interest in the topic at hand and what your business is. Certainly can't hurt to sign with your company name or website below your name, right? Many of us might feel deceived reading commentary without such disclosure, though I'm sure you mean no harm.
I've read much of the commentary, mostly on computeraudiophile and whatsbestforum regarding HQ Player and quadDSD. Hopefully, someone soons comes up with easier to configure and use software that can equal or exceed that performance. Sounds like many are frustrated with HQ Player complexity, more so than with other popular music software such as JRiver, A+, Amarra, etc. When someone does so, I'll look forward to hearing it and listening for the possibility of improvement over what I hear now from top PCM with R2R ladder dacs. Cheers,
Spencer