Chenango Valley Summit Cycle Club: Training Ride for Lowlander

Some of us are considering doing the Lowlander Century in Mid September.  The 'lowlander' still has approximately 4000 ft of climbing, from what I understand.  Building on the success of our recent epic ride to Ithaca, I'm wondering if anyone might want to consider a ride to Cooperstown --AND BACK-- the week after next... (the weekend of the 7th).  I've mapped it out and if we go out and back it is a bit over 90 miles. if we loop it by returning via 20, we'll face less hills on the return, but it will be more boring and a tad longer [97 miles].  Anyone interested?