My experience on that was to sew w/my pins in and move forward...until...I busted a needle on my machine that hit so hard it broke in half and flung the one half right into my eye...and if I didn't have my glasses on.....I wouldn't be able to see to type this!:0)At least w/one eye. So, I learned my lesson and don't have to learn it twice-I take them out as I go now.