I have the choice between EF and M on a GvFC classic. I would probably have gone for an F normally but this is really a good opportunity so that is out of the question. I am happy with a fine line, as long as it isn't scratchy and has good flow. I hear GvFCs are on the wetter side so that pushes me towards an EF. Does anyone have any experience or comparison of an EF v M? I've again heard that GvFC, being German, tend towards a broader side of things.
For comparison, I have a TWSBI EF which isn't too fine or scratchy for me (I think it's a good one though). I also have a MB 146 M which is a good thickness, although I'd like something a bit thinner here. I also have a Waterman Carene in M which is thicker than I want for my GvFC, a Nova with a Bock #6 medium which again is thicker than I'd want for this pen. That all said, if the EF is likely to be scratchy I'd rather go for a wider line to get a buttery smooth writing experience.
If anyone has any samples that they could take a picture of, I would be extremely grateful. Otherwise any input is appreciated. Thanks!