> In what cases does doing from 8-bit bytes to 9-bit bytes result in something like a 2X penalty? Self-correction: In what cases does going from 8-bit bytes to

> In what cases does doing from 8-bit bytes to 9-bit bytes result in something like a 2X penalty? Self-correction: In what cases does going from 8-bit bytes to 9-bit bytes result in a penalty, and how much is it?