Hypershell X on a 14-mile trail: my legs at mile 14 felt like mile 3 (long, with numbers)

Did the full Skyline loop this weekend wearing the Hypershell X — 14.2 miles, 3,100ft of gain. Same loop I did in May without it, so I have a real baseline. Short version: this thing is not a gimmick, it's a cheat code with a battery.

Numbers: 41 minutes faster overall. Heart rate on the big climb averaged 148 vs 164 in May. The motor assist on steep pitches feels like someone gently pushing the back of your thigh at exactly the right moment — creepy for the first mile, then you stop noticing until you crest a hill not breathing hard and laugh out loud.

Caveats so you don't think I'm sponsored: it's another thing to charge, the hip pads need adjusting every couple hours, and descents get zero help. But my quads on Monday? Fine. They're never fine. Anyone else logging real trail miles with one of these?