Now that I had some shaves with the brush, here are my thoughts. Just as a pre-amble:
This is my first high end badger brush.
My favourites boar brushes are the Omega 49 and the Semogue 610 - I have tried many many others
My favourite horse hair brush is the Vie-Long Epsllon with white unbleached hair (50% mane/50% tail) and a fan knot - I have tried a few others.
And my favourite synthetic brush is the Whipped Dog 24mm set with a 48 mm loft - again I have tried some others.
From my research and experience, I can't think of any current boar and horse brushes that I would like better than the above. The only other synthetics I would be curious to try out at some point are the Simpson Chubby and the Edwin Jagger XL.
I have had only limited experience with the badger brushes (mainly due to the price barrier) - my first was an Edwin Jagger Medium in Best - it was just very very prickly and floppy. I also have 2 different Whipped Dog badgers - a 24 mm Silvertip with a 48 mm loft and a High Mountain knot with the same specs. The Silvertip is a very luxurious brush - ultra soft - but requires some work to get the desired lather. The High Mountain on the other hand is very scrubby with tons of backbone - I think it is due to the pointy and very low loft.
I use 95% of the time soaps and almost exclusively face lather.
Now to the main topic: The Dark Holler Design Paladin Brush - A Chief Handle in Strawberry Amber with Blonde 2 - band Badger Hair
Here the specifications (measured by my poor man's caliper):
Knot: 26.5 mm
Loft: 52 mm
Total Height: 112 mm
Handle Height: 60 mm
Price: 160US$ + shipping
This is a spectacular brush. Of course it costs more than any of the above mentioned brushes, but for me it is definitely justified and worth the price tag.
First the aesthetics: although the brush came very simply packed - basically just some bubble wrap in a padded envelope - the handle is flawless. And it looks stunning. Ken & Co. have obviously gone through a very meticulous process to ensure a handle of the highest quality and they have succeeded. It was very very hard for me to choose a handle material - they all look so gorgeous - but now I am very happy with the Strawberry Amber. The added bonus, is that it shimmers beautifully in different lights as well.
The handle has a very nice length for me - I think you could very well also bowl lather with it - the base could be a bit thicker for my large hands, but it still feels very comfortable.
Now to the knot and performance: All I can say it is stellar - on so many points. I would have thought that a knot of this size would be a product eater - but it is not. I get 5 passes of perfect lather in the brush - but that's it. The Epsilon mentioned above for example can do easily 8 passes, but even the 2 Whipped Dogs hold the same amount of lather - although with much much more effort.
I don't know how Lee Sabini has done it - but the knot almost behaves like a synth in terms of lathering ease - just with one very important addition: I holds the perfect amount of water. And you don't have to concentrate - soak a bit and shake a bit and the brush just magically keeps the right amount of water.
Loading time is very short - again can easily keep up with a synth, and lathering is very effortless as well. The lather quality has been outstanding - nice yoghurty creamy white gold - in my opinion better than a synthetic because it is more hydrated.
The face feel is also fantastic. When I first got the brush, I was a bit worried, because the new dry brush had a lot of scritch. But after a couple of palm lathers it disappeared and now as soon as the brush gets wet, the hairs start to curl a bit, giving it a wonderfully soft feel. It is of course not as soft as a synthetic, but I like it, because you feel something on your face!
It also has a good amount of backbone - not too much like the Whipped Dog High Mountain or a new boar, just the right amount so you can massage your face while face lathering, but you still don't have to concentrate all the time on the right amount of pressure.
The last great feature of the brush is the perfect flow through - it releases all the wonderful lather it produces with ease - no need to press and squeeze.
The ordering process takes a bit of time (as described above) - but IMO the quality is well worth the wait. I am certain it will not be my last Dark Holler brush!