Well I have only tried the RCA Amazon Basics and not the XLR. If other cables like WBC or BJC or such are genuinely better then I don't mind paying more. But I would never pay hundreds or thousands of dollars for a cable.
And if ABs are working for you, you'll have saved yourself a
bundle of money. No judgment here.

I've come to think that quality cables can make a difference (or perhaps it's better to say that
avoiding dirt cheap cables helps more) especially for speaker, phono, and headphone cables in particular. To me, though, "quality" means reasonably priced stuff like Snake Oil or Blue Jean, not the astronomical audio jewelry out there. It sounds like others on the thread swear by WBC. I haven't tried them yet. The most I've spent on interconnects is $80 or so, a bit more for a well-shielded phono cable, about $120, and perhaps $220 for a nice headphone one. Anything beyond that, to me, moves beyond "quality" into "audio-insanity" but, as they say, to each their own.
Yea the waiting game sucks, but you’re in for a treat my friend. It’s a fantastic amp and going through Schiit direct is wise, you’ll get the fantastic warranty that comes with it.
I had to wait a
long time for Folkvangr too (3 months) so I'm fine to wait as long as it takes for Mjolnir 3, but I appreciate the support! And, yeah, I always buy direct from Schiit because of the warranty and support. Just makes sense, especially when you venture into their higher priced gear.
I had to wait a while for mine as well due to it being part of the 2nd batch of the OG 500 units. If your Bokeh Closed reaches your door around the same time then you will be in for quite the first listening session.
The only time the wait might become intolerable is if the BC arrives and MJ3 still isn't here.

It'll be my very first pair of ZMFs. If that happens I
suppose I could try them on the Folkvangr with the impedance multiplier on and see how they work. FV has surprised me before and the Bokehs are easy to drive from all reports. Still I intend to drive them with the MJ3 primarily. I'm saving up my pennies to eventually get an open 300 ohm from ZMF to pair with Folkvangr along with my trusty HD800s. The hard part is whether to choose the Aeolus, Auteur Classic, Verité Open, or (most likely) the Atrium Open. So many choices! And, then, of course, when Mjolnir 3 finally arrives, does contemplating a Caldera Open or Closed down the road make any sense? That's an even more painful hit to the wallet (an AO or VO would be by far the most I've ever paid for phones). Decisions, decisions, decisions. Remind me
@MindBreak which headphone(s) do you use with your Mjolnir 3 again?
(The AudioQuest cables I've bought just didn't seem worth the money, although I do have a couple pairs of their Y-cables and have liked those.)