Maybe I'm wrong, but I feel like mid-scooping has since fell out of favour... Am I missing something?
There is no end of people here who will tell you that mids are how you get heard in a mix, in order to carve out your own sonic space between the guitars and the kick drum (or some variation of that). I know I'm in a distinct minority here, but I disagree. To explain why, I have to tell a story.
About 9 years ago, there was a TalkBass get-together at a pub on the Seattle waterfront. If you've never been to a TB GTG, you owe it to yourself to go. It's basically show-&-tell for bass players. I brought my 3-pickup Warmoth Jazz bass, a small 200W amp, a Phil Jones 6x5 cab, and my guitar playing friend.
There must have been at least 40 amps there, at least 60 bass players, and over 100 basses. At any given moment, there were 3-8 bass players playing on someone's bass through someone's amp. And as my friend pointed out, they weren't just playing the bass, they were showing off their chops. It all made for a wonderful cacophony, which only paused when
@Selta interrupted us to make some announcements and do a few giveaways.
Anyway, for part of the proceedings, my friend had parked himself at the far wall, and was just observing. He thought that among the sonic mud, he could hear my bass being played. He watched the fingers of whoever was playing my bass at the time, and sure enough, that's what he was hearing. My friend thought it might be the guy's technique, so when the guy moved from my bass to someone else's bass on someone else's amp, my friend was surprised when he couldn't hear what the guy was playing. Then someone else picked up my bass and started playing, and then my friend could hear
that.
Now, my bass is a great bass, equipped with the best pickups Fender ever made IMO (Super 55), and it's tonally very flexible, but any individual tone is not
that unique. I don't even remember what the amp was, either a TC Electronic BH250 or a GK MB200, nothing particularly special. However, that Phil Jones cabinet articulates like nothing else I've ever heard. It's not boomy or muddy in any way whatsoever, unless you intentionally shape your tone that way. My tone wasn't shaped that way. My tone was scooped. And my friend heard it in a room full of bass players.
Soooooo... From that, I conclude that if my bass through my amp can be heard in a roomful of other basses through other amps, it's not going to have any trouble being heard with a guitar and drums playing. The key for me is how articulate your amp & cab is capable of being. If it's just an average amp & cab, you might have to bump up the mids. I don't have to.