Additional info that may help to decide if a weight is by Paul Ysart or not ...
1. If the central motif is a 3- or 4-cane group (i.e. without an obvious central cane) then the item is extremely unlikely to be by Paul Ysart. This applies to any millefiori design, not just "spoke patterns".
Paul did use a motif of a central 6-cane group (3 larger and 3 smaller canes, alternating) but the 3- and 4-cane group is a regular feature of Ysart Brothers (Vasart) and later Vasart Ltd items.
2. In a weight with twist canes, if the twists are "ribbons" (i.e. twisted flattened canes, usually with 2 or 3 colours set symmetrically) then the item is more likely to be Ysart Brothers (Vasart) or later Vasart Ltd and following on through Stratearn, Perthshire Paperweights etc.
Paul Ysart used some "ribbon twists", mostly in conjunction with regular twists canes (in such as larger spaced concentric designs with twists used as part of a full concentric ring) or as part of a "scrambled" or "mixed cane and twists" design. Also, of the ones I have seen, all of the ribbon twists have been "chunky" and had thick threads of brightly contrasting colour.