Interesting take!
Would be really great if Flow Restruction’s solver could have some sort of seed, although I’m not sure if that is entirely possible?
I think this is very situational, and something both implementations lack (afaik), is the ability to give the “flow” solver some sort of terrain hardness input. Rivers tend to meander a lot more if the terrain is soft, in which Gaea’s implementation performs better and especially for the big rivers in low/flat areas, that is the case and preferred method for me. For small creeks and rivers in rocky areas however, I prefer World Machine’s implementation, as really snuggles in between crevices and rocks, acting more like a small river in a hard rock terrain.
It would be great if the Flow Restructure device would be able to drive its solving based on the rock hardness (and maybe slope as well?), to create meanders in soft terrain and quirky rivers in hard terrain.
And yes, “allowing” the solver to create multiple branches that reconnect later on would be amazing!