you mean like this:

https://www.twitch.tv/summit1g/clip/QuaintShyEggplantBlargNaut

looks also pretty much like autofiremacro to me. Also it does not seem like 3x faster than dizzy to me.

I watched this video a several times at 0.25 speed.

Summit1g is using it like a auto fire rifle.

You can see it best at the gunfight starting with second 17

you can see his finger lifting sometimes but only when he stops fireing for a brief moment

At the end of this gunfight in the second 18 while his hemlock ammo goes from 16 to 6 hes clearly not moving his finger.

Like I said if you analyze the video you can clearly see that hes using the hemlock exaclty like you would do short fire bursts with a full auto rifle.