So I asked this question then went and put a new cover on my ironing board. I needed a new one anyways the cat decided he was going to climb the other one like a tree and ripped it. Anyways. I DON'T LIKE IT. LOL its not stiff and it feels "loose" or kinda fluffy. like I'm not pressing anything. So maybe the starch IS good on my ironing board cover. Thank goodness I have 12 yards of fabric to starch tomorrow. lol
Thanks everyone for your replies!