Platinum Converter question

[AceNinja]

I just saw in Cultpen's website for platinum twist converter    https://cultpens.com/products/platinum-converter-chrome

 

It says:

Converter for most standard Platinum fountain pens. Screw-type piston fill.

NOTE: does NOT work with Platinum Preppy or Plaisir fountain pens. While the converter will fit perfectly well inside the pens, ink is only drawn into the feed, not into the converter. Can be used with these pens if you fill the converter outside the pen, then fit it pre-filled. Works normally with other Platinum pens.

Gold trim version also available.

End quote.

 

Question: What does it means actually?  does it means that the feed section of preppy (and other preppy type sectioned pen) has so much room/space that, when you draw ink with converter through the nib, the ink is only ever going to raise up till the feed?  I don't have a platinum converter, so this "Note" intrigues me.  

[A Smug Dill]

38 minutes ago, AceNinja said:

Question: What does it means actually?  does it means that the feed section of preppy (and other preppy type sectioned pen) has so much room/space that, when you draw ink with converter through the nib, the ink is only ever going to raise up till the feed?

 

I figured that is what it meant — which is completely misleading, factually untrue, and an insult to fountain pen users' intelligence.

 

The whole point of a converter, installed after-the-fact, is to give a fountain pen a filling mechanism when there isn't one built-in. To take the view that a converter's purpose is to fill the converter itself, as opposed to draw N ml of ink inside the fountain pen for use, is absolute nonsense. If the converter was to be seen as a separate part, then just fill that (using its piston mechanism or otherwise) before installing the removable, separate ink reservoir of a part into the pen!

[arcfide]

My experience is that the Preppy isn't ideal with the converter, but certainly far from unusable in the standard method. It does draw ink up, and initially, there is a lot of space in the feed, and it will not fill up as it normally would, but after running it a few times, it will draw up plenty of ink, IME. However, one catch is that there is a large amount of open space around the lip of the section where the nib emerges from the feed. That space can fill up with quite a lot of ink, and if you don't do something to remove that ink from there, it *will* drip out at some point.

[Warbler]

The converter linked to in the op looks similar to the converter I got for my Platinum Procyon.  It seems to be working well with that pen so far. But I got mine on amazon.  https://www.amazon.com/dp/B014XN3934?