Setup and then chage the strings?

[Nami]

I Ordered Strings Over the web and i scheduled a setup before the strings are suppose to arrive (2-3 Days) but if the setup won't affect without new strings I'll get plain strings from somewhere. but i really prefer the strings i ordered. can i setup while the old strings are on and then switch to new ones?

[Jo6Pak]

Unless they are the same strings, there MAY be a difference. Size and tension matters and it varies between types and brands. If possible, I would postpone the setup until the new strings arrive.

[Nami]

Thanks for the answer! Actually It's the same set size and tension but those are nickel plated.