In my mind, tinkering with a fountain pen's nib, be it smoothing, adjusting inkflow or...whatever, is probably the most risky and tempermental things that we do when we try and repair fountain pens.
My experiments with smoothing fountain pen nibs have been hit-and-miss in the past few months, but I believe that I'm slowly getting better at this skill and my success-rate is gradually climbing. However, I have a question to ask...
Not wanting to possibly destroy an already bungled nib on a practice-pen, is smoothing the nibs of dip-pens a good method of practice for learning the finer details of nib-smoothing? Or are fountain pen nibs and dip-pen nibs too different to really practice smoothing the former by practicing first the latter?