I don't have a feeling the pickups pull on them that much harder than the previous set, and it wouldn't pull it harder than what the bridge allows. Also this new one is already a bit lower. String i'm testing it with now is actually the one that was on it before, but it could indeed be that the new set has a slightly higher gauge. I started using the old string just to not damage the new one too much but putting it on, adjust stuff, taking it off etc etc etc
The truss rod is a very good recommendation, have heard of that but didn't think about adjusting that myself, but from what google shows it could be a cool solution. Thanks for the tip!
I think indeed I have a bit bigger gauge, but i'm testing it now with the old string actually (Don't want to damage the new string by constantly putting it on and off etc).
A bigger gauge pulls harder on the headstock, pulling the neck up, you mean? But then I would think that the strings height would increase, not? I did see another comment mention the truss-rod aswell. Thought it was daunting indeed but some googling makes it seem kinda doable.
also, lol after seeing you edit, but yeah I believe the new strings are a bit bigger, but the effect seems to be from a weaker pull, like you said. but yeah that kinda confuses me :")