No, it's the 26mm. I think a 24mm wouldn't satisfy me with this knot in comparison. With 26mm it's between the Plisson and the 24mm. I would even bet that the Timber Wolf actually IS a Plissoft with diffferently dyed fibres.
What I might be interested in is a Cashmere or the PAA Albino knot. But the PAA only has 24mm. So I am hasitating (and it's sold out here in Germany anyway).
The fibers are the same in deed and i think the 26mm is much closer to the Plissoft, exactly as you say. I only have one 26mm synthetic, the Razorock Big Bruce and it is noticeably floppier than my 24mm and 22mm plissofts.
Yes, sir, i think you are right, that the Cashmere should be the best candidate. Better if you find it in 26mm from another vendor. Maybe someone in Etsy might have a 26mm Cashmere? Anyway, you have nailed the situation perfectly, as far as i am concerned.