Ok.... so a couple months ago i was torn between buying a diamond 580 and a vac 700.... so i did what any normal addict would do.... i bought both. Now, although they both have the newer jowo nib i believe, they are different sizes... 6 on vac and 5 on 580 respectfully. My issue has been with the 580. I got them both in medium. It is a veeeery wet writer. Like to the point of almost bleedthrough on rhodia. Im not sure if this is normal... I know that many have said they had flow issues with theirs in the past, but mine is the opposite.... Is this normal for the 580? Is it the medium nib? (Ive ordered a fine for it which should come in soon) I love the look of the pen but the flow makes it difficult to use for practicality reasons. Can i slow it a bit? Or is it just how the medium nib writes? Fyi my 700 is great. And i have tried a few inks and lastly nkw i have apache sunset in it which normally behaves drier, but is stikk gushing. Ti.es are alligned, perfectly touching at the tip of the nib.... i just dont get it. Please, if u have any advice or reassurances let me know. Thanks