Hi All- I have an atypical office equipment problem. I only use Pilot G-2 Pens in Ultra Fine (0.38mm) in blue. They are excellent for marking up documents that I review on a regular basis. I like blue because it doesn't blend in to the page like black and its not too flashy like green or red. I I guess its a weird personal personal preference. Anyways, is it me or do these refills not exist? Please help if you're knowledgable about this. I'm trying to be environmentally friendly and not throw away so many used up pens. Also, thank you all for reading and helping.