I quit buying pre-cuts cause I most times found them to be cut off angled, frayed or not a size they should have been. The pre-cuts I do still have in my stash I starch by soaking in a tub of liquid starch, run them thru my makeshift winder and hang them to dry or lay them on a towel if small. Then press them and see where they stand on size. I'd rather cut my own precuts after I've starched and pressed them though.