So I have been playing with this for days now absolutely fine, but if I join a friend online (after switching back to the base EAC) will EAC detect that I have more skill points than I should?
It will, but will something happend? not at all, unless you cheat online. The skillpoint and attribute is possible to reset and or remove with the trainer, i recomand to remove the above points. I also have played for like 6 character and done all quest, main and side, done the hunt and the poster too without removeing any points. but i never jump online or even try with the cheat and i am gg dont think u can go online eather.
I do play with a friend without issues other than disconnect from server a few times. dont know why, if its steam or the game server.