I really drooled over many CS pens, but it was just another very pretty nail.
Had it a semi-flex...I might have started filling a milk bottle with money.
The original CS made non-exceptional out side a few pens like it's herring bone. There was a few but with a reputation of nail or regular flex at best....again in my Search for a Swan....CS didn't get bought.
The chance that CS will make a semi-flex nib for fountain pen owners instead of nail&semi-nail for ball point users is too slim to worry about it.
Yes, I really do like the springy ++ of a semi-flex. I can live well with a true springy regular flex like a Pelikan 200...
I am in a small minority that asks for a big with a bit of spring in real good springy regular flex or a tad more, like a semi-flex that Bock or JoWo could make...if paid for. I do prefer semi-flex....having 30.
I do have old Bock nibs with semi-flex, in both gold and steel. It's not that they can not make them, it's the amount that must be bought to make them.
It is the extra cost.....and for semi-flex 14 K is needed not the 18K of the nail. Education of consumers to the more springy 14 K would be next to impossible; with out real clever advertizing.
German vintage '50-70 semi-flex stubs and those in oblique give the real thing in On Demand line variation. Modern Oblique is a waste of money for a shadow of line variation. Being too lazy to Hunt for affordable vintage oblique pens, lets you 'hunt' for line variation instead of having it.
www.nibs.com/blog/nibster-writes/nibs-germany & https://www.peter-bo...cts/nib-systems,
The cheapest lessons are from those who learned expensive lessons. Ignorance is best for learning expensive lessons.