anyone who races as a junior in 2007 will need to make junior rollout. this doesn't just mean junior races, this means all races. a junior doing their categorized race or the senior race will still need to do rollout. here's a very good link to understanding the details.
http://www.usacycling.org/forms/rules/JUNIOR_GEAR_ADJUSTMENTS.pdf
i believe that the quicksilver winter solstice series will again offer free entry to juniors. anyone intending to show up there or at tradezone should be prepared to do rollout before the event. read up on it if you need to familiarize yourself and share this information with anyone you know who might be affected. i know pete lindemann had a couple of sources for special gear that makes rollout so if you're in the market, you can probably drop him a line for additional info.
-sg