PLANofMAN
Retro Razor Junkie
Sorry for the late reply. I don't know how "new" the technique is, but my experience with badger is that the tips don't change. Boar gets softer with use as the ends 'flag' (fray). Boar bristles are naturally flagged on the ends. Some manufacturers trim the ends (which is why there is a break in time), and some don't. When a manufacturer like semogue says "90% tops," you know that 90% of the bristles are naturally flagged, and break in time for such a brush is essentially zero.What about 'super' badger - I imagine because the tips are 'treated' (whatever that means) they are as soft as they are gonna get? I haven't really found much about super compared to others. Is it relatively new..?
Badger is essentially "what you see is what you get." If it's scratchy from the start, it will never get softer.
Edit: as far as face feel, super is comparable to silvertip.