TGN finests are fairly consistent in my experience. Though the 26mm were slightly less dense than average as I recall. I doubt one exists as dense as your chubby, sadly. I'm jealous of your M&F, neither of mine are any denser than a TGN... though with the added backbone to the hair, they lather much differently. I have one (A Klenzo Green Marble base I had him restore) at what I'd normally consider a bit high of a loft for it, and it still performs really well thanks to the spring to the hair.