Are you also rehearsing with this setup? Recording each tune and listening back to make changes after every song? ...
My experience is 100% with small rooms - bars, restaurants, coffee shops, etc. And limited PA systems w/ no monitors. The 2 guys who were best w/ mics/sound systems are no longer with our group. And now, we pretty much play only at retirement homes/private parties/coffee shops where we play entirely acoustic. But even when we had those guys, we found rehearsing/recording challenging.
As w/ most groups, we rehearsed in peoples' homes, where various factors are quite different than on a stage/in restaurants/bars, etc. You don't want to run your recording thru the condenser mic, b/c when you play with a mic, the room is also picking up the unmic'ed sounds of players way from the mic. So you need to have a separate mic set up at a distance somewhere that it will pick up the stage mic's feed as well as ambient sound. That's kinda a big lift for a non-pro band.
For me, there is no substitute for having a fellow picker you know and trust in the audience, giving you good feedback. IME, the biggest problem is EVERYONE wants themselves to be louder - with the result that everyone overplays the vocals. Gets especially bad in some up tempo songs, where everyone gets into it and keeps playing louder and louder (and often faster and faster). Many times, as bassist you will have a lot of influence over the dynamics. Hopefully your bandmates are listening, and when you lower the volume, they will as well. Right now, I'm really digging playing as a trio, as we all REALLY listen to each other. A good exercise is to work on more quiet, slow songs. Maybe a few waltzes. Get people used to playing/listening as a group, and as backing to the vocals.
The bass is sorta the exception. You can pretty much thump away w/o drowning anyone out. Just be aware of the periphery of where the mic picks up, and aim away from the mic when you step further inside that range - for vocals or whatever. Like I said, I needed to be in a pretty big room - or outside - before I needed to amp/mic my bass. I could stand well back from the mic - or off to one side - but point my bass towards the mic and the rest of the group. My bandmates could hear me acoustically, and the audience heard a good mix of me direct and thru the mic.
But a banjo or a mando needs to learn their ranges. Depending on what a certain part of a song needs, they can take a step in or out, or turn towards or away from the mic. And if stepping in to provide backing vocals, they have to pick quieter or turn their instrument away from the mic.
Your group is approaching a sweet spot when EVERYONE wants to contribute but not be selfish...