Hi everyone, Can anyone tell me if I can remove and rotate a Prelude nib? Stephen Brown demonstrated that, with care, a nib and feed can be removed for cleaning, but he replaced it in the same orientation. Are the nib and feed keyed in the housing? In which case, I cannot rotate the nib to suit my grip. Alternatively, could I fit an oblique italic, if the nib and feed are not keyed? Next, is the 14K gold nib on a Signature pen identical to the Prelude? In which case, could I fit a gold nib into the Prelude, with the sculpted grip? Finally, does a Prelude grip section fit properly into a Signature barrel and cap, so that the snap cap fits properly? Many thanks for your help everyone, IannL