I am really skeptical about your opinions: you started with something based on your experience and quickly progressed to HD800 mods of which you do not seem to know much, mods or headphones. Fist of all many people, like me, bought HD800 and used without any mods because they were just perfect for instrumental, classical music. I moved to HD800S after that. And the mods were all focused on removing the 6kHz peak that bothered some folks. But almost everyone agreed that overall HD800 were so good overall that modding them would make a lot of sense because, with the mod, they were not acceptable as you think, they were just better than anything else.
HD800's.
Firstly, I'm glad you think that the HD800's are "just perfect" for your favoured genre or whatever, but surely you can appreciate that the headphones are overall treble emphasised and analytical, and not "balanced" or "neutral" as many claimed. This is further evidenced by hundreds, maybe even thousands of people modding and EQ'ing the headphones all in a similar way, to reduce the treble hotness and/or also syncing it with gear (AMPS, DAC's etc) that were tilted towards warmth or smoothness.
As a reference, I love the balance of the MDR-Z1R's, and to me they're excellent as they are, but I wouldn't be disingenuous enough to suggest they're not somewhat bass emphasised, in the same way I wouldn't be disingenuous enough to suggest the HD800's were not treble emphasised or slightly on the colder, airier side. Have your preferences, sure, but try and maintain some semblance of objectivity comparative to everything else.
Also the mods, custom EQ's etc for the HD800's have the effect of notably impacting the overall signature of the headphones by dialling back the treble regions, and notably that 6k peak. We're not talking about an insignificant difference, but a marked one which re-balances the sound of the headphones, and ironically brings them closer to the HD800S. I purchased and fitted the Superdupont mod myself, directly from Sorrodje on these forums, but then reversed them since I ended up later purchasing the HD800S, so preferred having both stock, for added diversity. There is enough of a difference between the headphones that I kept both the HD800 and HD800S, which should highlight how much of an impact the mods in question actually had.
Skepticism.
Finally, I don't really care that you're sceptical of my opinions, I'm sceptical of most opinions on these forums too. It's good to be sceptical. But those who have been reading my posts and impressions for a while now, will know that I tell it straight. I don't fall in the the trap of needing to falsely promote or commend headphones, DACs, amps etc I purchased for silly money to validate my purchasing decision, nor do I fall idle to flavour of the month, hype or trends.
I have always been up front about my opinions, even when controversial. Eg blind comparisons I've posted comparing high end amps vs the O2. High end cables vs cheap one's etc. Likewise about the HD800 and how I didn't think they were completely balanced or neutral, contrary to what many said at the time that they were "the
it headphone". I was also upfront from the very beginning about how I thought the LCD2's were rolled off in the treble and lacked somewhat in air and articulation, even when many on these forums suggested otherwise when they too were "flavour of the month" (low and behold all "improved" releases after the LCD2 had more treble emphasis). Likewise with my impressions of the T1.1 vs the T1.2, the LCDXC and all sorts.
Ultimately, I'm able to be honest about my opinions because I'm not as emotionally invested and jaded towards expensive purchases, and tend to own multiple high end cans at a time. I speak candidly about the HD800, HD800S, T1.1, MDR-Z1R, LCD3 etc, because I OWN them all. I'm not someone who's put all their chips in one basket and feels the need to validate that purchase relentlessly. I'll tell it as I see it, and as I hear it, in an honest way for the benefit of all users. If you don't agree with my opinions, that's fine, but consider that you're at least hearing opinions from someone who actually owns the headphones he's speaking about!