Not necessarily the gold, but yes. That's my long term plan on a weapon, I'm quite happy with everything except the chaotic outsider bane, but it seems to be the best option left.
My DM has a MIC but I don't so my ability to just skim the book looking for goodies is limited, though I can happily use any material from it if I'm merely pointed at it.
So two 25%'s back to back would be .25x.25 for .0625 or 6.2%? I guess I expected another step.
Given that that is multiplication, it should work for any base % and any number of iterations yes?