Up gauge

[the low one]

If I up gauge from Elites 40 60 80 100 to Rotosounds 45 65 80 105 will it affect the setup of my P-bass, or can I just change over

[carl-anton]

As I remember the Elites they're pretty stiff, so I don't think it would matter much. It's nothing that would make your bass unplayable or anything. A slight trussrod adjustment might be in place though not nessecary. It's depending on how it feels when you play.

[lo-end]

Thicker gauge strings take some getting used to anyway, so you probably wont notice if it needs a setup. You'll be too busy getting a feel for the bigger strings.