I had a soundpost go down in a rehearsal and couldn't find anyone to the work without a 4+ week wait, so I set about doing it myself. Not only did I do it and make a decent job of it (it's still up two years later), but I learned how moving it around changes the characteristics of the bass itself. Us UPs (Upright People) can (allegedly/so I'm told) spend a lot of money on strings, PUPs, mics, preamps, and amps in the pursuit of perfect tone, while in my case 4-hours with a pair of kitchen forks, some string, and an as it transpired completely unnecessary first aid kit, was an equally interesting and varied journey, albeit cheaper 👍