It's a little trickier to find a warping board path that will be a perfect multiple of the original skein length, thereby getting the pooling just so. Here is my first attempt. I decided the "Carnival" colourway would be a sacrifice to the initial attempt.
It's pooling, and rather effectively I think, but not quite in the way is usually intended, which is with the colours more or less in softly blending stripes across the warp rather than sharply contrasting ones along the warp's length as this one is doing. I'm not certain but I think it's because my warp path is ever so slightly longer than the actual skein's length, doubled.
Here's a photo of the exact path the warp takes on my Saori warping board. It's ever so slightly longer than 4m. The skein was 2m.
For this type of pooling to work on a warping board you have to have a circular path, rather than one that goes down and then back up as a warp is normally wound. Syne Mitchell of weavezine.com has an article that explains how to wind a palindrome skein on a warping board, for effective faux ikat.
If you are interested in trying this, Nancy, Ravelry user name "MeasuredThreads", has a great explanation of how to evaluate a palindrome skein to create a faux Ikat scarf in her post on a rigid heddle loom forum on Ravelry.
I experimented with a few different colours and weights of weft threads and have decided to weave this one with sewing thread as weft so that the warp colours are all that is really noticed once the scarf is wet finished.