Thanks Scott. In that case I have many files where I have 60 minutes of moderate level hiking (Mt. Si). As an example, for a hike a few weeks ago, ascended Mt. Si for roughly 1 1/3 Hours at an easy/moderate pace. If I consider the first 1/3 hours a warm up and look at the decoupling for the next hour, it’s 4.35% at an average HR of 141. I’ve been using 146 as my AeT previously. Does this sound like a reasonable AeT given these numbers?