<p>Well in the books about metru Nui, the mask forgersMake it so carefully a hairline crack shouldn't show!Because otherwise the power can't flow through it,But doesn't that mean if you get a crack or a scratch from battle wouldn't it be the same bad?hmmm I vaugly remember the book saying something along the lines of "the slightest flaw would render the mask powerless" which makes me think if it only applies to the mask making Process or just in general.I just got another idea thanks to Makuta matatawhen the vahi had a crack in it on the seafloor the power was flowing out changing the time around it,but not only did the vahi do it but also the ignika!that got me thinking is that what happens when making a mask and you accidentally create a dimple?would a miru with a gouge just suddenly float up to space?but even more so are the masks in the protodermis reclamation yards, do they leak power before they hit the furnace?