Planning on doing it again on the tandem with my wife. We did it last year, and barley finished.. but we did finish.
We are waiting until next week to register, since we want to be sure that we are ready. We had a very slow start to the season.
We used a 28x28 low last year, this year it will be 28x32 (SRAM XX cassette). We do have a 53x11 high and use it!!
Here is a pic from umd's wife