Comment on The Identity of X and Q in part 3 of Kryptos by theoracle

Just pointing out that the plaintext can be 97 but at one of the stages of encryption it may have been converted to a foreign language so, example, write plaintext, translate to russian, route transposition then masking technique, the reverse in exact reverse order would be required to get back to the plaintext. Also, if K4 is a key and not a ciphertext it is in plaintext already