good luck, stay at the front of this race. your cat 5 event is like 10 miles and will take about 25 minutes. go from the gun, seriously. a cat 5 field would never know what hit them.
then stick around the rest of the day to see all the balto junkies and prostitues wake up on the park benches, and count the crashes. there will be no fewer than 20 (crashes, there will be at least 2x as many junkies and prostitutes, it's baltimore afterall).
bikejam, in my opinion, great event, bad race. I gave up on it after the 7 crashes in the masters race 2 years ago, where I spent more time in the grass and did more cyclocross remounts than I ever have in an actual cross race.