My current favorite is the green Lamy Safari which I bought on eBay a few months ago for less than $ 10. I think it might be already twenty years old. I replaced the nib and recently Lamy replaced the inner cap. Now the pen is in perfect condition again. The pen has been used regularly for years by the previous owner and I think that's the reason for its nice ink flow. It has also a different feed design than today's Safaris. I noticed that there is only one ink channel under the nib (in modern Lamy feeds there are two). The flawless performance of this pen makes me wonder again if too much flushing can decrease the flow, at least in Lamy feeds. My brother has a Lamy pen, too. He didn't ever flush it, he just puts in a new cartridge when the old one is empty. And the ink flow is very generous. So at the moment I am tempted to say that flushing/cleaning doesn't increase the flow, but regular writing does. Maybe the feed has to be completely soaked in ink before working perfectly.
The Lamy 0.8 nib is a self-ground former 1.5 nib - see this thread.
I have also uploaded an enlarged section of the photo.
Lamy Safari Flame (orange SE) with 0.8 italic nib
and Pelikan Brilliant Brown
Waterman Kultur (light blue) with fine nib and
Waterman Blue-Black
Waterman Kultur (orange) with fine nib and
Waterman South Sea Blue
Lamy Safari (savanna green) with fine nib and
Waterman Blue-Black
Disturbed by his colleague's lack of enthusiasm,
again and again
the Egyptian astrophysicist visiting the observatory
in Mississippi
analyzed the multi-part transcription of
telecommunications from the
Galileo probe for the minimum of errors
and maximum of syzygy.
The Textura line was written with Waterman Blue-Black.
I tried my best, but the ink colours are still slightly off on the photo.
Regards
Hans-Peter