Tricks for duals.
1. Use different proxies to logon to each dual. Try and be consistent. If you logon to two different duals using the same proxy, the jig is up.
2. Also, find e-mail addresses that are free, yahoo, g-mail, etc, and reg them there. Make sure that each dual gets their own account.
3. Don't reg all of your duals on the same day. Space them out.
4. As far as making them believable duals, be as detailed as possible. For example, give them IM names. AIM and yahoo accounts are free. Give the duals their own AIM or Yahoo accounts with SN's similar to your duals' user handles.
5. Try and give each dual their own background and personality. Even change the way you construct your grammar and spelling.
6. Open up multiple browsers and post with multiple duals at the same time. In the same thread have them converse seconds apart, or at the same time.
Note: these are tips designed to create alternate persona duals who are to be used continually and not just spur-of-the-moment spam duals.