What’s your unit size relative to your bankroll?

i've been trying to tighten this up because i had it one way in my head and then when i sat down and tracked a few sessions it looked way too loose for roulette.

right now i've been treating 1 unit as about 1% of bankroll, sometimes a touch under if i'm playing longer and spreading a few inside bets, and that has kept me from getting buried when the board goes cold. but then i read people talking like 2% is still conservative and now i'm second guessing where the line is if you're not flat betting one simple outside every spin.

what i'm running into is i can have a bankroll that looks fine on paper, then a normal bad run hits and suddenly the unit didn't seem small at all because total exposure per spin was more like 3 or 4 units once i had a couple numbers covered and a hedge on it. so when people say their unit size relative to bankroll, are you meaning the base chip on one bet, or what you're willing to have out there on a full spin?

i'm not trying to get cute with progression or anything, i just want a number that still makes sense when i'm playing the way i usually play and not the clean version where it's one straight bet every time. is there a bankroll % you guys settle on for roulette where you still have room to breathe without making the unit so small it barely matters

thanks