I fear to even think of creating a new master password / PIN (without relying on variation play).
I mean, practically.
- How many words?
- I don't speak English, so which language? Non-ASCII scripts? Keyboard-layout-based? (Typing non-ASCII on QWERTY)
- Does it need punctuations? How do you add them? How many?
Next is, how long would it take to memorize it without tools / helpers? What helpers did you use?
Lastly, how many masters do you have? How closely they are related?
Related, also. How about numerical PINs?