Burgundian Ordonnance: According to the list, Burgundian and English longbowmen can be equipped with stakes as PO. So which troops can use them? For people armed with a bow of some sort, the list mentions: Household archers (mtd Bw (S)), Ordonnance mounted archers (mtd Bw (S)), Ordonnance foot archers (Bw (S)), English longbowmen (Bw (S)), and Ordonnance foot archers (Bw (O)).
So there's only one troop type where the troops are specifically called "longbowmen", which raises the question of which Burgundian troops can use PO. But if the implication is that PO is available to all missile armed blokes who aren't crossbowmen, then the later Ordonnance foot archers classified as Bw (O) would be the only such types I can think of who get PO.