Just to make things easier, vertical spinners will have a varying tooth height. Hopefully with my new one, the lowest it can get will be around 5mm off the ground

Although I don't know all the entries, the only verticals I can think of that will be competing are Drumroll 2 and....ahem....'Boner' (old Drumroll) so there's likely to be only a 1-in-20 (roughly) chance of encountering a vertical.