Just a question and a comment; do ya'll have steel edges on your cross-country skis?
Teflon coating will give even less friction, that is true. The problem is that the runners on a kick is also used to steer with, so for high speed runners to work they have to be grinded just like a hockey skate with sharp edges so that they can keep the kick going straight. If they were coated the risk is that the kick can start going sideways on the track.
If somebody REALLY wants to build a big fire, and qualify for the "Darwin Awards"; Talk to Pork Pie and see if he can rummage up a pulse jet from a
V-1. That engine was capable of moving a ton of TNT to London, oughta work to the theory that "if you want to build a big fire, get a big stove!"
Jim