Well what "big" dick is kinda depends.

I appeciate the more specific explanation of how 6 vs 8 feels when you take position and roughness and speed into account...

... but if you're talking with your friends, casually, and they ask you 'was it big?', there's your casual, quick response scenario, what roughly would your length be for that?

a rough minimum length that takes it out of average/common/normal territory?

You've already covered how there is so much more to sex than just cock size, but a whole, whole lot of guys really just want a straight answer to that kind of a question, just so they know where they stand.

Whole lot of male insecurity going on, like I know all the stats (more on that below), but perception and stats don't always line up, and a lot of women also are not as forthcoming as you are, or, just like guys can be deluded by porn standards, so can a lot of women be deluded by porn standards.

Beyond that: I legit would not have expected you say rough doggy or another deep position with 6 can be painful, I would have imagined it would take a bit more than that.

Though, I have read that the average, aroused vagina is roughly 5 1/2 inches in depth, so I guess that makes sense, but there are few studies on that and they all have huge error margins.

Totally makes sense that taking it slow makes it much less painful, more enjoyable, even with larger lengths.

Also makes sense that girth is probably more of a factor than length, when it comes to pain, just more volume, more expansion, more potential for friction or even tearing per the same length.

Ok so, as to average length being about 5.7"... that is actually uh, bang on the money for all the comprehensive meta studies on this I've read.

Yeah, a lot of studies exist on that, and yep, 5 and 3/4 inches is basically the average over the whole globe.

So, ... basically, you have uh, experienced what us stats nerds call a representative sample, not heavily biased or skewed in some way.

Also:

Tbf I don't sleep with anyone less than 4" so maybe that skewed it. The number is pulled out of my ass tho tbf ;)

Well, I guess its pulled not less than 4 inches out of your ass.

Sorry, you walked right into that one, haha!

But uh no, you probably didn't skew it that much with that rule, I think any fully erect dick under 3.5" is just actually considered a micropeen, and those are... basically as rare as somebody over 7 or 8 inches.