Pop Quiz:

Do I go 30+, or Cat3 at Dan Ryan Woods?

Advantages:

Cat3 starts later, and it's an hour plus drive.
30+ will be slower at the back (where I will be) of the field.

Disadvantages:

30+ may very well be insanely fast among the very top riders. Greater chance of getting lapped by guys in own race.
Cat3 (According to rumor) will be starting only 2 mins behind the womens 1/2/3. Greater chance of having to weave around the slower women while possibly being lapped by the faster women.

What should I do?