Many people know now, there is a feature with turrets, that feels in my opinion a bit borderline exploity.
Ok, schema implemented the reduction of power for each group, e.g. every additional cannon output increases power by 10% etc.
This can be completely bypassed with turrets. Just make a 1 output cannon system. Then copy paste it. Now turrets fire all weapon systems at once. So it shoots all the cannon systems you copied down as if they were one -without any power penalty. This has completely made the feature of more outputs = more power useless. I do see some players seeing this as a smart engineering choice. I think it shouldn't be a feature though, since it completely removes the point of even having on board cannons on the main ship, instead have super overpowered turrets, that also tend to have better aim than players...