Maybe its me but I don't see a need to use the HD modded with my ZD or for that matter the BH Crack.

Me neither with the DNA Sonett or the Balancing Act i tried once or from any Meier amp I tried or Owned

Good! I think in this way you make the HD800 more listenable by increasing the amount of recordings that you can listen to without fatigue, and at the same time you keep your Mojo for your Orthos.

The truth is that even with the ZY and mods the HD800 is not a perfect match for the Mojo, it benefits from the pure dynamics and power.

I am very curious about the Rag, but as they say, no money no honey... 

After calling cables snake oil I just dropped a small fortune on HEADPHONE CABLES!!!  In preparation for getting on the Rag, I got a balanced HD800 cable from Norne and a balanced HE-560 cable from headphone lounge.  Why are they so damn expensive?  Actually compared to non-Ebay Chinese cables these two companies are actually on the low side, and even a custom cable is cheaper than the Sennheiser balanced cable, but for crysakes just to listen to balanced amps it's almost half the cost of the transfuckingducers.

Now I'm all in, this sickness has got me by the throat, can't wait to post the photos here, I will rent an 800mm lens just to get the super thinnest DOF to show off my dreamy custom y-splitters.

My Draug v2 for the HD800, together with its 4-pin XLR to 6.35mm adaptor, arrived three weeks ago. The only bad thing is that the 4-pin XLR portion is very bulky. Consulted with Trevor and it seemed he couldn't offer the mini-XLR form factor for the adaptor connector due to the overall thickness.

First of all, the retailer from which I bought the HD800 gave me the APureSoundv3 - a silver-plated copper cable. The difference between that and the stock cable was discernable for me - the APureSoundv3 was just less harsh and strident at the same volumes. Then, since I planned to go for a balance output amps someday, I did some research and then decided on the Draug v2.

The difference... to be honest, I can't really tell if there's any bass differences at the volumes I am listening at.

Just wanted to update the thread and chime in that Peter at Double Helix finally came through with a replacement cable to alleviate my connector issues. 

I moved from the Massdrop ZY HD800 cable, to a Norne Draug 2 (Litz Copper). Comparatively, the ZY cable is soft sounding...limp dick perhaps, lacking in bass weight and impact. The ZY cable was also less resolving, brighter and had a smaller stage - all in all, kinda shitty in retrospect. The Draug is darker, fuller, very smooth and organic, pairing well with my Ragnarok (neutral and a bit dry). It has great bass impact as well. The wait time from Norne was long (2.5 months), but Trevor's treated me well, offering discounts for the wait time. Recommended.