I know this thread is super old but I’m hoping you will still reply – I literally have a question about getting my AeT skinning – I set out to do an AeT and drift test on Saturday and stayed in the suggested parameters over the 1hr 15 min less than 5% drift, but because it’s in as XC ski, it didn’t give me didn’t have the Pa:Hr to make sure my effort was low enough, when I switched it to a run, the Pa:Hr was 11% but the pacing is soooo different than running and the grade is usually hovering around 20%. But I’m flummoxed and just don’t like the idea of coming up with a target for skinning on a treadmill. So my question for Rachel is how did you know you were at your AeT for skinning? Did you use the same AeT as for running?