Could be talking about Ride Around the Bear Breathless Agony is 12,000 ft). I would think a tandem would be a disadvantge but a couple form SoCal (ALex and Deya/ spelling?) actually took first position on one of the climbing rides ( BA I think, could have been The Bear). Another guy JohnR from SoCal aslo did great on Ride Around the Bear, 5:30'ish. Top 10% of some serious climbers on singles.