The two yellow curves show how i want to join my curves but i could not rearrange my List to get a result like that because the curves allways come out in columns. Its realy important that the method work for higher UV values - the low count is only for illustration. It should work if i shift the index of all items in every second row by 1 but i didnt know how
UV control is not a great way to do this. UV does not always have a good correspondence to physical distances. Of course there is always rebuild command or Quadremesh to get a more regular topology across the shapes.
I normally get away from UV when control is needed. Use PanelingTools to get the grid based on vertical planes and horizontal planes. Then the structure of the original profile curve has no influence on the spacing of the grid.