those purple blades are nice quality, but they are reeeeaaaallly soft compared to printing with something like a triple duro. Lots of flex. They work well in the ergo handles though for waterbased if you're pull stroking. Soft enough to flex, but because of the shape of the handle, it makes the blade flex closer to the mesh. Kind of creates a sharper/tighter curve than you would get with a harder blade or a wooden handle.