Hi mford610,
No problem. Lets go throught the points:
The mesh, often such a “negative donut” gap can’t be filled in a single step. I use then little bridges, to give some guidance, and have a little bit more control about teh outcome. In the clip, this is done for speed and not for aesthetic.
Information is everything and the flow of it. IF there are only two points, then there is not so much to work with. These points need to be editable. Also here, check the clip
Please note the UV uses for each polygon a frame, which is based on the closed loop of the edges. All information of these frames are on the edges. There is no information inside other than interpolated flow from the edges. So, a large polygon, will have not the precision to project a spline than many others have. It is different to the Spline> Project, where all the points are moving along a clear path, e.g., down on Y. With the Surface, the UV is crucial, and it might distort the spline, if not fine enough.
Screen capture
https://www.amazon.com/clouddrive/share/1HiC0TfqD1lUcVEVW57uqRibMvjPRBL5j2q2YZdr5H4
Please let me know if there is anything else not clear, I’m happy to look into it. Never feel sorry, as long as I have ideas, I will share them. Hopefully it will support your progress.
Enjoy your weekend