I can reason out and mathematically prove how a GV is an advantage. In the real world, I have zero experience, in my head, I think about it all and I can not find a single reason to purchase or use one. IMO, it is not cost effective. My wallet is to thin to play with one. I myself would rather use a factory 4spd auto or a manual trans that has a OD gear, be it a A-833 or Tremac variant.