Does anyone know if ZT (Kershaw) is planning on changing the detent on the 0452CF Flipper? I've bought two but sent them both back because I could barely open them. Kershaw said I could send them to Kershaw and they would "do what they could", but no guarantees - is there anything that they can actually do ? I love the knife but if it takes so much effort to open it I'll just try to forget it.