I’ve been a professional musician for more than 30 years. As a pro, I’ve played Keyboards, Guitar, Bass and Drums. While it took years to perfect the sound of each rig live, bass is by far the one that takes the most knowledge and skill to get a great sound with live. I say this because of my own experience and the fact that I hear so many good bass players who have a blah sound live. I attribute this to the fact that bass eq is complex compounded by the fact it is highly affected by the natural ambience of the room. While there are endless aspects to making up the bass sound, the one I’ve come to rely on most is my compressor - that’s the one I couldn’t live without. What’s your gotta have tool for tweaking your live sound? Doesn’t have to be a pedal. Could be settings or anything that works for you.