Grind question

Hi all, I hope someone can help me with my first grind for Askiy Mule deer. I've watched several videos and I'm actually making headway on my grind, but I've heard conflicting info and thought I'd ask here about it.

-Do I shoot ALL solo bucks, even the lvl 1 and 2s? (I've just been leaving all the < 2 solos, but Lady Legend's video says to shoot them all.)

-If one on my main zones ends up with only smalls bucks, do I shoot one or two of them to make room for a larger spawn? I know I can also try and shoot one small and one large buck and try and get them to switch zones, but was wondering if there's any benefit to thinning out one or two < 2 out of a larger herd.

-Some people are adamant that you can only shoot two bucks in a zone at a time otherwise it will screw it up, but some grind videos show them shooting as many as they can at one time. Is there any truth to only taking two at a time?

-Does shooting a doe spit a herd? I have a dilute one I want to harvest, but I don't want to mess up my grind.