What's The Difference Between A TWSBI Eco & 580? - Q&A Slices

I've already got a Lamy Safari and a pilot metropolitan, and my ink collection is an okay size. I'm looking into buying a TWSBI pen next, but I'm a little confused as to how different the Eco and diamond 580 actually are. Should I stick with the less expensive Eco and get a nicer bottle of ink with it, or is buying the more costly 580 (and sticking with the ink I've got) worth the extra money?

in terms of actual functionality, the Eco and 580 are not vastly different
the biggest difference in the 580 has swappable nib units, the Eco does not
both are piston
both can be fully disassembled and come with tools to do so
both hold a lot of ink
both cap well
aesthetics probably influence your decision more than anything
if you're looking to maximize your utility, then get the Eco and the bottle of ink, that's what the Eco is made for

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   • Goulet Q&A Episode 152: Liberty’s Ely...  

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