Thanks for all the advice on my previous post! The results of my informal poll are in, and every single one of you said I should go for it and do the century (100 miles!) ride on Saturday. So it seems that you either have incredible faith in my cycling abilities, or you just want to hear my torture story after the fact!
Whichever the case may be... I have decided to go for it! I guess you could say that now I am in it up to here!
Wish me luck! (hopefully I will be back to tell the tale!)