Bump steer question

Well, Since we do not yet know OPs goals or application or even what car he has;
I'll say this; having put 150,000 mostly street miles on my 68 Barracuda,IMO,
3.5* caster was just fine; and .5* camber was just fine;And the 1.03 bars were just fine too.
My car is a streeter, driving on the street, where I can never trust the road to be worth chit for traction, so there is a chitload of skating involved, often at both ends.
When skating, the suspension relaxes and settles into skate-mode, and the only thing that matters is that you picked a decent line, with no obstructions or objections to where the car is going to end up, despite your best efforts not to go there. lol. At that point I might as well just be a curling stone, cuz I am more or less just along for the ride. This is what makes a streeter so exciting for me. Never knowing. Every trip is an adventure, every corner a dare, every almost crashed it; an OMG moment.
If this doesn't happen to you,............... IDK, check your heartbeat, cuz I fear it mighta stopped.
But in all those miles and all those hours, I never once stopped to ponder if I needed just a lil more caster, or a lil more camber, or a lil more tire.
Well, not totally true;
One time, just one summer,I wondered if a lil stickier tire would help me; one time, I wondered. Four weeks later, if that, those fancy tires were bald and gone, and the Barracuda was back on streets; and I never looked back at the time I spent on those stickies. Didn't even miss them. The only thing they helped, was to almost ruin my paycheck.
The take-away for me was/is; It's way easier to correct bumpsteer at 3.5*, than at 5* on a system that was never designed to run more than ~1.5,lol.