Then you need to adjust your Songbook entry for the song to link to the amended style location. You can also follow the same procedure for the STS for the style and if you also want to save an edited performance with the style.

Seems like you want to have a few different tweaks for many different styles and songs, so my strong recommendation is to ensure all locks are set to off in the Global section. By doing this you can be sure ANY tweaks you make to a style will always be recalled, including an effects editing you might also do...

These locks have no effect on the Performance, Slot 1 that gets loaded by default...Unless you accidentally overwrite it!!! (easy to do and I have done so on quite few occasions!!! )