Hi everyone!

I hope the hive-mind can help me a bit in my dilemma. I am almost exclusively using bottled ink at this point. It's lovely, but sometimes, it's tough to fill a pen or I get the entire grip section covered in ink. As I'm using a more permanent ink now for my PhD work (Sailor Seiboku, but currently debating between getting a bottle of Seiboku or trying Souboku), I am fearing that I will stain the grips of my pens for all eternity. The idea of using something to get the grip away from the ink is appealing, so I looked around and found the Pineider Snorkel filler and the Pen filler. Has anyone tried them out - are they any good? Which one do you recommend more? Specifically, I would be interested in which converters fit on the Snorkel filler (e.g. Sailor, Lamy, Kaweco, standard international, ...).

Thanks in advance and have a great day! :)