How does one go about "most thoughtfully" installing strings?
1. Uninstall the strings to be replaced one at a time.
2. Pull the new string into place from the bridge or tailpiece to the string post.
3. Put the old string alongside its replacement, then use pliers to bend the new string where it will go into the string post to match that bend in the old string.
4. Use the cutter of your pliers to cut the new string after that bend to match the length of the bit after the bend in the old string.
5. Insert the bent, cut string end into its string post, then tune it to pitch.
6. Repeat for the other strings, one at a time.
7. Tune 'em all to pitch as a set.
8. Check and adjust set-up, aiming for every note on every string to be in tune, plus the harmonics at each 12th fret.
Critical points:
A. You replicate the bend in the old string before cutting the new string to length.
B. A string going dead prematurely often results from the windings loosening around the core. Not following steps 3 and 4 can allow the loosening of windings between string post and bridge.
C. Always keep your strings clean and in tune.