I couldn't get it to work either, unfortunately. Sorry 
Sorry....a follow on question....but would either of these methods work for V4?
I'm afraid not. V4 is .cr2, a different rigging system that is not compatible with anything that came after it. While G3 and G8 are a different form of weight mapping than G1/G2, they are still all weight mapped, not the old parametric system used in Generations 3 and 4.
Well fudge
Thanks anyway
Thanks anyway
Well....if you couldn't then we are probably doomed. Thank you anyway