Quick update on this crazy little 620 that was picked up as a "back-up" to a CH1 but has become my go-to brush for the last week since landing at the doorstep. I'm really enjoying the face-feel and its lathering capability, you can't see the tips but there are quite a few hairs splitting 2-3 ways. Have had to learn to load it heavy as it was barely holding enough lather for a 2 pass (but it's not a big deal as the soap is right there and I just reload anyway). And as well as performance it's just a sweet looking brush too IMHO.
As a first "real" boar (as opposed to an El Cheapo I had) it's really opened my eyes to the qualities of a decent brush of this sort; so much so that the Chubby is getting no love at the moment.