OK, it's going to take some time to absorb all the info on TSPTalk. It will start making sense after you've had time to browse through everything. As far as how the Ebbtracker works, you'd have to ask Ebb about that. For me, it's not that important. The track records speaks for itself. I suggest that you go to Ebb's talk thread and post your questions about his system. Here's the link:
http://www.tsptalk.com/mb/showthread.php?t=2949
Thanks.