Re: yes
LOL. Letter/number/symbol substitution was a feature of password cracker tools 20+ years ago.
Decryption/analysis speed is more important than password strength. IF you can try decrypting just the boot sector of a truecrypt partition and scan it for signatures, that's too easy. (Does anyone know if that's the case?) It should take *several seconds* per pw. Goal is to raise the hardware+electric cost of brute-forcing way above what your data's worth, ie. millions for measly consumer banking info, trillions for state secrets. Good luck with that...