Brandon,
I actually heard this quite some time ago and i think it would work but i have not tried it, that is not to say that it does or does not work.
from memory it is only on fluorocarbon, you use some rough sandpaper and it helps the braid grab and bite into the fluoro leader when using friction knots.
i am just wondering,
i do not see my self why it could not work, would this work though and would it be worth trying and doing or not?