If it works, keep it. From a logical point of view enabling both in sim and in NCP is redundant. Idk if theres a negative side-effect or not or if one of them is getting cancelled out and the system just uses one of them and ignores the other, i really dont know. But usually the advice is to only use one or the other.
I cant give you a definitive answer tho. If it works, it works. 