If I get the chance, I will give it a pop, but I am not convinced at all, and to be honest, even if it did work, I still wouldn't run it, I race to go fast, and I go as fast as the track allows, simple as.
At a guess, those who are skimming, buying new tyres etc, they would still do it in 5cell, so no change there, plus gearing would need to be more 'precise' too.