Hi all. Today I bought a Conway Stewart 466 lever filler from an antiques market. The pen is in nice condition and fills properly, but when writing with it it feels "scratchy" to me - at least compared to my TWSBI Eco(F). The pen has a 14ct gold nib(not sure of the size) and it is a flex nib. However, the nib looks like this: http://i.imgur.com/6rZpQNp.jpg?1 (Apologies for the slightly poor out-of-focus picture) Is the nib supposed to have that subtle "bend" in it at the end? Or am I just using a flex nib wrong? I gave the pen to my mother to try(she writes with a "straighter" grip with the pen more perpendicular to the paper if that makes sense) and she said it was fine but I could still hear it audibly scratching a fair amount. Is the nib at fault here or am I just failing to use a flex nib pen?