Just space banked my 2007 week, and with that one, there is a noticable increase in what I'm able to pull.
There are some exchanges that pop up that I certainly wasn't able to see a year ago. Not sure exactly what is going on, but the trading power with the newer week seeems to be much better than the '05 week and slightly better than the '06 week on deposit.
I'll be interested to see how any trade test comes out if we get it organized.