JT > Atlas.
There really isnt anything S4 can provide utility wise to make it overall a better choice than JT. Vamp strike is nice but its honestly not essential.
JT has on average more damage output and is more practical to rainbow by virtue of it not being locked behind a drop that only drops 20 times a week across all ships.
Farming boosters is cancer, but at least you can do it at your leisure. Rainbow aside, I've already did the damage calc and it comes out on top or even for everything but like kr0.
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