Replying to Did i just ruin my skis???

i just hot scraped my old rail skis, which i havent waxed since the end of last season. i used them with dry bases all of last season, so the bases were dried out and extremely dirty. when i scraped the wax off, it was black. does this mean i could have overheated the bases, or could it just be that the pores of the base were just really dirty? im not too worried cuz they are trashed anyway, the only reason i am even waxing them is for my sister. But i would like to know if this is a problem. newschoolers do you have some answers?