OK one more question. I don’t have access to a treadmill, stair mill etc. I have a spin bike at home. Options for doing the heart rate drift measurement are: Do it on the spin bike, don’t do it at all and just go with the plan anyway, or don’t buy the plan and workout according to how I’ve been doing it (some strength training, climbing at elevation only add increasing weight in the pack for the summer). What do you guys think?
