I've bought three different Hemline packs and one German made (can't remember, but not Prym) and they're all really disappointing, not very sharp or in some cases no point at all! I've recovered some of them a bit by shoving them through a Brillo pad a few times but it's a bit of a pain! I've not done any dressmaking for 40 years so I'm out of touch, any suggestions would be gratefully received, thank you