I picked up a new Cara and the blade was somewhat tight.I had no problems with one hand opening but it was harder than my other lock blades.I loosened the tension until I had a little side play and it was easier to open but I could not snap it open very well.Lubed it with mineral oil and tightened the screw until the side play was gone.Helped a little but not to my liking.I know it's cheap and not a bad knife for the money but is this normal?