Im relatively new to all this and need some advice. Im gonna send my P Bass in for a setup but am wondering which direction to go with the work ahead. First off its a 4 string and I pretty confident thats what I prefer. I have smaller hands and put a Jazz neck on the bass for obvious reasons. I think a 5 string would just bring me back to square one and too big of a reach. So with that said I also tune way down. Usually a whole step if not 2 whole steps down. Fan of Tool and COC type stuff and overall heavy and low. Now for the questions. The neck right now is set up with a stock nut from fender. Should I consider replacing or modifying the nut to accommodate some heavier strings? If so what size are we talking? Or should I even consider using the heavy B string that Vs use instead of using a standard E string size? Your advice is appreciated. Feel free to correct me on any typos or flat out confusion. Its my Friday night.