Subscribed. I'd be interested in your experience. I've seen folk players using 'weird' bows like yours. I remember they sometimes use 'weird' holds. I never was able to understand it, but it surely is interesting, and they often achieve very good and uncommond sound.
I've seen them playing with the bow tilted tip down (so that the hair doesn't move parallel to the strings), which perhaps might be because they commonly use double stops, so they could compensate for the ideal speed/placement mismatch... or perhaps just because they never cared for teachers.
Also, they often play all hairs at once, they don't start the tone with the bow tilted towards the strings.
Sadly, I know noone to ask about it. These musicians are very rare now. If I were to start searching, I'd probably try to contact
Josko Broda, who I know was recording with real-to-bone folk players from Poland, Slovakia, perhaps Hungary. But I'm sure there must be other people like this, geographically closer to you.