Well according to www.health.howstuffworks.com, "the last thing you want to do is dry out your skin. If you do, it'll kick your sebaceous glands into overdrive" (Whitmore). Cite your sources?
First of all, I have no idea who "Whitmore" is. Second of all, I'm astonished that even though you've apparently been a member here since March of last year, you haven't run across any of the posts I've made challenging the "feedback" theory of sebaceous glands! I've done that, oh, maybe HUNDREDS of times here on acne.org!
Another thing you (or your source) are vague about is the issue of "drying out your skin". You don't bother to specify whether you're talking about being "dry" from a lack of moisture (water), or "dry" from a lack of sebum. As Dr. Albert M. Kligman MD, PhD has pointed out, sebum has no significant effect at affecting the moisture content of human skin. You have to have TEN TIMES the normal amount of sebum on the face, before there's even a noticeable increase in moisture retention.
Another thing that Kligman has talked about at great length is that there is no "feedback theory" of sebaceous glands. The amount of sebum your skin makes isn't affected by how much you wash-off.