The cap has not been an issue for several years, so it is very difficult to say much with 100% accuracy. The last time that I remember the cap being an issue was in 2000 and before that in 1999. INS did things (if memory serves) somewhat differently in 1999 than they did in 2000. Many things have changed since then (September 11th, the economy has changed dramatically, and probably most importantly, INS does not exist and it's successor, USCIS, is not even part of the Department of Justice).
Sorry, given the magnitude of the changes, I just don't feel confident enough to say how they will handle the cases this year.