Interesting workaround. I’m 67 and have wondered if the ramp test “discriminates” against older cyclists whom due to age have limited VO2 Max? My last two completed ramp test showed a slight reduction from 210 (Nov. 19) to 202. My most recent ramp test had a mechanical abort when the power cord on my Kickr popped loose due to for/aft movement on Inside Ride Eflex. But using your 75 to 80% of 1 min power would put me at 226 to 240 (301 max). I struggle with V02 max intervals but am like a diesel locomotive on SS/over-unders.