I think
As a Superslicer user, I was very happy to use it, but since I changed mine nozzle from 0.4 to 0.3 - I cant use mine profiles anymore, so I'm forced to use Cura and believe me I dont like it at all because it is slow, the prints take longer (way longer than Superslicer), supports are pain to remove and I can go on and on, but that's not the point. The point is I cant use my own custom start g-code and no it's not empty.
Anyway, in another thread @GregValiant helped me fantastic and I'm thankful for that.