Yosemite Valley legend Tommy Caldwell joins Sam and Adrian on Episode 18 of the Duffel Shuffle Podcast. Tommy talks about this season in Yosemite Valley, and why moving his family to South Lake Tahoe has changed how he's able to climb in the valley. He also talks about his recent film, The Devil's Climb, which covers his recent trip to climb the Devils Thumb in Alaska with Alex Honnold. Tommy admits that his true passion in climbing is the sufferfest expeditions, but really he just loves climbing regardless of what it entails. 

Follow Tommy on Instagram @tommycaldwell, and check out The Devil's Climb. 

Sam and Adrian catch up on their plans and what schedules look like as they head into winter. After the break, the two reflect on the podcast to-date, and share some exciting updates for future episodes. Moving forward, episodes will launch Wednesday's and be available in the early morning hours. Starting with episode 18, an editor will give The Duffel Shuffle a fresh sound, and future guests like Tommy Caldwell, Michelle Parker and Nick Russel will be joining in.

Sam and Adrian follow up on their conversation started in Episode 15. After discussion high altitude climbing and acclimatization, the two dive into a conversation about pre-acclimatization using hypoxic tents, and the program that Alpenglow Expeditions has established in Rapid Ascent. The program utilizes pre-acclimatization alongside advanced trip logistics to reduce the total expedition time by 25-50%. 

After discussing the three Piolets d'Or winners, and 60 finalists, Sam and Adrian jump into the complicated topic of high altitude climbing. The two share stories of their early experiences with altitude and talk about the basics of acclimatization and what a typical schedule might look at. Finally, they dive into the "aids" that are used for altitude climbing, from Diamox and Dexamethasone to Oxygen. A future episode will discuss the topic of Pre-Acclimatization using hypoxic tents, and what the Rapid Ascent system that Adrian has pioneered looks like.

Adrian and Sam chat about what it means to be a mountain guide. From introducing the American Mountain Guides Association (AMGA) and International Federation of Mountain Guide Associations (IFMGA) to discussing the decades of guides who came before the AMGA path was the standard, this episode is a great starting point for those curious about the training and business side of the  guiding industry.