Strings aren't "scooped" - the differences between different round wound strings is all in the treble region. You might think that a set of strings "scoops" the mids, but they don't - they just have more treble, and that is distracting you from hearing the mids clearly.
Strings all follow the same general sonic pattern over time = brightest at first, they lose their initial "zing" quickly, and then settle into a long period of relatively stable sound, and then eventually, they get to where you decide to change them. If a set of strings sounds good out of the pack, but they "go dead fast", what is happening is not that the strings are dying fast - you just bought the wrong strings. If you want long lasting strings, they need to sound too bright out of the pack - that way, when they settle in, they will sound like you want them to for a good long time.
Said another way, Boomers don't die fast, they're just not bright enough for some people's taste - their settled in sound isn't what you want. You want/need brighter strings.
I use Boomers on one bass that needs strings that aren't too bright, I use SIT Power wounds on a couple basses, and the brightest strings I use are Kalium Hybrids. The Kaliums will "last" the longest if you put them all on the same bass, but it's just because they're the brightest - on a bass that needs strings that aren't too bright, they're too bright.....for a very long time.