I'm planning to make some changes to my bass guitar. I'd like to:
- Moving from heavy to medium strings
- From flatwound to roundwound strings
- Lower the action
Obviously, the guitar will need a new setup: The lower-gauge strings will affect the intonation, put less tension on the neck, and possibly require me to move the pickups closer even if I do lower the action. (I'm planning to open it up and clean the noisy pots while I'm at it, much in the same way I cleaned these faders.)
This instrument (a Peavey T-40) is amazingly easy to work on, and I've set it's action and intonation on this guitar in the past. (It's the same guitar I mentioned in this question.)
My question: Are adjustments beyond setting the action and intonation generally needed when making these string swaps? (If so, I'll likely bring this to a shop.) Does doing a setup like this often require adjusting the truss rod? That's something I'd prefer to avoid doing on my own, as I've heard of people damaging the neck of a guitar by doing it improperly.
(I'd not be quite as concerned on a regular guitar, where the string tension is lower.)
What do I need to look out for when doing this?