The CRW will be my first organized century. I have ridden a century solo (unplanned) two years ago. I am worried about the Quabbin and Greylock because the Quabbin has 6000 feet of climbing while the Greylock has 10,000 feet of climbing (and I am not a good climber). Anyway, assuming that I do ride and finish the CRW century I will gauge my form and how realistic riding the hilly ones is.