I recently removed the stock Fender nps 45-65-80-100 strings from my 50's RI P-bass. I replaced them with Fender flats (40-60-80-?), I think one of their lightest gauge flats. I did this to retain my neck relief. I like it where it is. I did not intonate, I only lowered the saddles. They have been on for approx. two weeks now. As per my usual custom, I think I want to switch back to rounds, but this time with 45-65-80-100 nickel Lo-Riders. Does anyone know if this will screw with my action too much? I would like to not have to adjust the neck (in which case, it's going in for a set-up) After slapping the rounds back on, I will intonate and adjust the saddles as needed. Thoughts?