This is my first post on this forum and I need some advice from you senior guys. I bought a Pilot Metropolitan with a fine tip and I've been bitten by the fountain pen bug. I've also bought some Jinhao x750s because why not. Now I'm really looking for my first vintage pen. I have found a Sheaffer Balance 500 model with a fine nib and not white dot and an Esterbrook J with a 9556 nib at what seems to me like reasonable prices. But look like they are in relatively good condition and both have had their ink sacs changed. The Sheaffer is about 15 USD more expensive than the Esterbrook. So what do you guys think? Is the Esterbrook better suited to a newbie like me? Is the Sheaffer worth the extra 15$? Thank you very much in advance!