The photos are good and clearly show that there are no "regular Paul Ysart canes" anywhere in the weight. By that I mean I have seen none of those canes appearing frequently in Paul's items, although one or two might be found very occasionally in his work.
The ground is formed as a "thick" section, has "sharp" edges and is very uneven in its shape. That is not in keeping with Paul's usual style. The "legs" between the layers are very uneven and seem to hang in various directions. Again, that does not tie in well with Paul being the maker.
The white ground to the upper layer is thicker than most of the equivalent Paul Ysart white grounds that I have seen - but I do have a large, domed, true "Fountain" design (first image here
), which is very likely a 1930s piece and made by Paul (it has some canes that match to signed weights), and this has a fairly thick looking and rather uneven white ground. So I can't say for sure that the white ground in your weight is not like Paul's work.
On balance I would attribute this one to Salvador Ysart, and until there is good evidence to the contrary, I would say it was made in the Ysart Brothers period (but the flat polished base is an unusual feature and might suggest pre-war).
I don't get jealous of other folks' weights ... but I could be a little envious about this one from an academic viewpoint.