Wanting to try new strings

[Nightwolf55]

If I wanted to try out a new set of strings, would it be good practice to take off a current set of strings even if they're still good?

When I had my bass set up about 3 months ago, the luthier actually placed on a new set of strings, and gave me the old ones also (which still have some life in them).

Anyhow, is it good practice/does it do any harm? I actually want to try black beauties, and have hi beams installed now.

[RickenBoogie]

No harm, but try changing one at a time, so your neck keeps tension, and try to keep the same gauge, so you don't need another set-up.