Sorry, I completely misremembered the company.
Hummina Shadeeba said:
If it’s drag, a magnetic drag, where is the energy going exactly? Call it whatever u want but where is the energy going
Any energy lost as drag can only be converted to heat. So if you sealed up your motor in fantastic insulation and turned the shaft slowly, so that core, bearing and windage losses were negligable then you'd soon find out how much loss cogging creates. If you're right and cogging is responsible for the majority of the drag you feel on your board then your motor should get very hot quite quickly. You said cogging was a big resistance even when turned slowly by hand. If that force is all wasted and not returned, like a magnetic spring, then it'll be converted to a lot of heat.