What would your estimation be though of the Comanche's to climb away between 90mph (Vmc) and 105mph (Vyse)?
The only person who could tell you that would be one who has suffered a catastrophic engine failure in that speed range. It's hard to suggest a realistic test at altitude, and it's nuts to suggest a realistic test at runway level. I would also agree with Tinstaafl that the 97 mph quoted is not an indication of the ability to climb.