Thanks to those chiming in regarding questions on time/phase, HHC, etc, all responses were bang on.
I am unsure between email, social media, forums, etc, where I have and have not posted information, but the Blackface Duo is going to begin development directly after the Class-A Duo is releases, which will be in the next few weeks. From there, I will have 2-3 more Fender bundles in the queue, staggered with libraries from other types of cabs. At my current plans, I will not be repeating the Deluxe Reverb, but I will be doing more speakers in the Tweed Deluxe.
Cab Lab is a great piece of software, and definitely at a fair price for what it offers. That said, if you're sticking with freebies, I'd recommend switching from LeCab2 to Ignite's free NadIR. While not the best sounding (yes, loaders do and can sound very different), it's way better than LeCab2 to my ears, which sounds broken and does bad things to the top end.
Thanks! Very glad to hear you're digging the new packs!
If it helps to you or anyone who has similar inquiries, among the million other things I have going on right now I'm also very slowly building out a tutorials section that will serve this function. What is already up in the General area will help describe the mix files in application, less the 'what they are made of' segment in the PDF Manuals:
ownhammer.com/tutorials
On the whole, the Quick Start represents what I feel are the most generally applicable "ideal" placements for the mics on a given cab for the typical purposes for which it is used. There is no such thing as a singular "best" file that will work for every person in every situation, and is why the verbose options are included beyond the Summary (where available) and Quick Start area in the form of the Mics and Mixes folders. If possible and practical, it is always best to audition IR's in a DAW and loader that has quick browse functions (next arrows or a quick pull down) if you are wanting to tweak and overly fine tune, rather than doing so in limited space outboard units. That's not always available or ideal, hence another reason for the aforementioned Tutorials area I'm chipping away at... sloooooooowly...
Hope that helps!