A frequent lament of pen users is a dry feed that doesn't keep up with a flex, broad, or wide italic nib. My understanding is that a feed needs to match the flow requirements of the nib. Is the opposite problem frequent -- a too-wet feed that floods a fine nib? I have read about this issue less often. My intuition suggests that, to maximize options, a pen user can order a pen with a wider nib that can be reground later to be narrower. Going in the opposite direction, from fine to broad, is impossible. Additionally, a feed designed for a fine nib may not be able to keep up with the increased flow requirements of a broad, flex, or italic.
But, when regrinding a broad nib down to a fine, is there an issue regarding the match of feed to nib? Would a feed that typically accompanies a broad nib create too much ink flow for a finer nib?