Thanks for the replies guys.
For the most part, the height fog is enough.
However as can be seen from the screenshot, the sky unfortunately doesn’t get blocked nearly enough.
I tried moving the z location up/down like kirk.clawson and found the point where its the thickest, which is where the screenshot is from. If I moved it either up/down from that point it started thinning out. However the sky doesn’t get blocked more than this.
Am I missing something simple (like usually)?