Jinx and the Ruraans Huricane

Is it just me or does it seem like Jinx getting all 3 stacks of her Miniguns Passive seem REALLY overpowered when you think about it, especially with the on hit effects she can dish out from say, Wit's End and The Lizard Elder Buff on all enemys. At with the right set up, 2.5 AS right off the first attack for minimal cost. Personally I like it, but I can't help but feel this might be a tad overpowered. Maybe try and make the difference between the two forms of the passive more equal, since you can get Ruraans and do much better than you can with the Rocket Launcher being able to deal AoE much more reliably at the cost of less range. A balance MAY be needed, I am not too sure