I had similar results w/ my BlueShoe Brand Inc shoes. As soon as I dropped a few kgs, my watts/kg went up! Amazing improvement and the BlueShoe flyer was even realistic I wonder if I should get the subscription to find out the real deal?
My best improvement in my shoe-to-pedal interface was the implantation of my cleat into the ball of my foot. That, along with the titanium and carbon fibre reinforcement of the tarsals and metatarsals have contributed to a 500% increase in efficiency and loss of about 25 lbs. But these enhancements are a bitch to run in…
You are serious about these shoes being worth the coin? Hmmm…