I dont think most people were using the tremor in 2018. Look at that chart again, unless I'm looking at it dumb.
For me, I want to use the center of the optic as much as possible, so that I can spot impacts/misses. I'm also a magnification whore so its best if I keep the impacts center. Having tons of lines/dots that I have to count makes it easy for me to get lost and recount if the layout is not intuitive.
I use to think its was as easy as watching splash and moving the closer dot on the target but its tougher than that. Unless your shooting at a target with a berm right behind it, its not as doable. Basically means your looking at a Picasso painting while trying to focus on the target and the bullet impact; it gets distracting whether you want to admit it or not.
Last month there was a guy trying to sell me on it, but I didn't try to explain that I went down that rabbit hole. He would use holdovers and I'm sure he wasn't able to watch his impacts because he was using the bottom 3rd of his optic. He shot like ass but some lessons have to be learned the hard way. I tried telling him to dial but he was adamant about holdovers. He didn't shoot too well.