Done it. The place I most notice lightweight wheels are when climbing slowly on steep mountain bike stuff. Climbing like this is not a steady application of pow

Done it. The place I most notice lightweight wheels are when climbing slowly on steep mountain bike stuff. Climbing like this is not a steady application of power like steady riding on the road; it's a series of small accelerations. When doing this lighter wheels are incredibly noticeable. You also probably won't see this in your PM data unless you're getting data on partial pedal strokes. More steady power stuff like on the road, climbing fast, etc? I agree that lower wheel weight just isn't something you'll notice. (Very good evidence for this is riding a fatbike on a fast rolling dirt road ride vs. climbing very steep fire roads.)