Maybe you should back up a step and tell us:
- What servos you are using (links to specs or something is useful).
- How many of these servos you plan to control.
- What your application for these servos are.
Without this information, we really can't recommend a "best course of action"; the solution you are attempting may be the solution needed, or you might be solving a problem that doesn't really exist. Answering the items above will help us help you.