Surfacing... just a nightmare

[Proterio]

But with any art or profession, it takes years of experience and perseverance to master.

You are making my point : /

surfacing questions, if they are specific

Well that was the point of this thread. Specific questions dont weigh the pros and cons of surfacing methods as a topic.

Even tangency is opaque under the hood. There is no description of the Rhino methodology, no algorithms to decode, no underlying precepts explained.
You are just told tangecy is calculated based on inputs given.

Finding the tangent point of where a curve hits a another curve without changing the geometry of either as a result of that tangency is not possible in Rhino

TANGENCY for the INTERSECTION of 2 curves, not just a point on one curve

In thinking about this some more, I realize my method is flawed and so this great solution will result in tangency… [b] But not a tangent intersection [a] If the tangent start is disconnected [c] The challenge is to find the intersection with a linear method (without iteration) such that disconnecting the tangent start does not affect the resulting curve shape This code demonstrates the problem. Connecting/Disconnecting the Tangent Start will show the challenge - to find Tangency based on…

When we come to surfacing the resulting geometry, the resulting surface is not surprisingly undesirable. I have spent a week on this problem alone.

When it comes to surfacing the corrected geometry, I still have no idea wether to use loft, sweep 2, curve network or Edge curves. A discussion of the relative merits and limitations of each would fantastic if you have the time )