I've really been excited for these rides as well. Looks like we'll have pretty decent weather for both. Much better than the humidity of last weekend.
I signed up for the 70 miler on Sun. Perhaps I'll regret that after the 100 on Saturday. I did both last year also, but not the longest distances.
"The Ride for the Arts" 25 miler has the best route... south down the lakefront. That will be fun with a group.
Have a Great Time !!!!