For a long time I have resisted fitting a shield tank to an Ishtar because “It’s supposed to an armor tank ship”.
You even get a warning in the fitting screen when you fit a shield tank to it - “Shield modules on an armor tank ship?” Or words to that effect.
However almost every fit you ever see for the ship , no matter where it’s being used is a shield tank. So I followed the crowd, x-large shield repper paired with a large cap battery and a couple of cap recharge modules. I have to admit it is far superior to any armor tank build I have tried.
EVEN in a firestorm filament with 50% armor HP bonus, the shield tank is still better. I find that even with dual armor reppers you just can’t repair fast enough sometimes.
It makes me wonder what other so called “Armor tank” ships that I have will work better with a shield tank. Since most of my ships are Gallente.