Thane Heins is sitting on a golden egg. Although it dosnt involve shorting the coils, i believe that the principle could be used for shorter length coils with the shorting technique, i think you just have to get the pulse frequency up above that impedance point and getting the switching in the right spot(probably a little before and after tdc) But you probably will not get the HV spikes with that technique, its got a different nature to it.