Trying sd-forge-couple again. Seems like it's still in a volatile state of development and it's getting multiple updates per day.
Also thanks for the tip
>>2851077 the resolution is essential, and that messes up highres fix or img2img upscaling if the multiplier is odd like 1.5x.
It works about as expected. Since it's splitting the context, it works best if there is a clear dividing line between subjects. If one subject overlaps into the next tile, you'll get a seam where the subject takes on properties of the next tile's prompt. The output seems to be quite rough compared to a standard gen, and this roughness carries over for me after upscaling and refining with inpaint. It took a lot of time to get pic related to this state and I'm still not satisfied. I will mess with it more to see how best to overcome this.
Overall I think it's easy enough to use especially compared to the older regional prompter, but it's capability is best for pretty niche scenarios so I won't be using it a whole lot.