I wanted to explore the appearance of the untied and tied versions on this 4/1 lampas warp.
The sample closest to the weaver is the untied version—when the primary cloth (yellows) is on the top, the two layers are separate; in the tied version, closer to the shuttles, the layers are tied. My personal bias has always been for the untied version, as I find the contrast clearer when you don't see the little speckles resulting from the ties. The downside of the untied version is that if the untied sections are very large, the cloth becomes unstable and sleazy. The following two pictures show details of the untied and tied versions, in that order. Click to enlarge.
I was surprised to find that in the second (tied) sample, there is an unexpected bonus: the reverse side is quite usable, and the ugly floats have disappeared. And there is also an interesting diagonal ribbed effect introduced. Very textural!
Following is the reverse side of the untied version, with a bonus selfie. S'prise!
And now the reverse side of the tied version. Getting better at the underside pictures here.
When these are all cut off, I'll put them on the scanner and get some decent pictures. But you get the idea.