even the Knox F seems to me like MF and they are too smooth.
I look forward to the day I can say I own a fountain pen that's too smooth! I definitely cannot say that about my Penmanship, Varsity, Preppy or even Metropolitan (the best of the bunch, and not at all bad). Last month I briefly tried a Lamy 2000 and a reconditioned Parker 45 that had gold nibs and were smoooooooth. And I liked it!