Nut Width Size (from 5 string to 4)

I need a 4 string in the arsenal and I am a bit concerned with going from a 5 string nut width to a 1.5 ... I found a more expensive option with a 1.65

Will one be a safer jump? Or is it not that big of a deal long run?

Basses Im referring to:
Current 5 string - Lakland skyline 55-02
1.5 - lakland 44-64 P/J
1.65 - fender elite P Bass

Any reccomendations/experience welcome!