I tried it on Siege, they don't have pack instinct, but the worst part is the anti pushthrough code. In tight spaces, only 2 or 3 max can attack the target . The best ones I could tame had roughly 260ish hps, which would be decent if all could attack at the same time so i only had to concentrate on healing one of them, I may give it another go in the future.
Curious do you need animal lore along with bushido to control them?
No, still bush only. Which is why I didn't keep them, no stable slot room without putting tame/lore on. They listen quite well.
No, as the slots go up, so do control requirements.
No once training starts taming is required. Though getting swarmed by 5 could make pvp fun
Eh? Do you get less stable slots on Siege? Our characters on Europa have 6 stable slots as non tamers. That would be sufficient for that plan. We kind of like the idea!
We also hardly used them so far, but according to UOGuide the Lesser Hiryus also have Dismount? It is in the Tameables list as well as the Lesser Hiryu page, which even states in the "story": "The Lesser Hiryu is the younger version of the powerful Hiryu. They are not quite as strong, but also will knock a rider off their mount."
Oh, that would be unfortunate. Maybe if someone has one tamed, they could take a look at the abilities.
I'll double check when I get home but I do believe that they perform dismount
A Plucked Chicken to boot! I agree. Wish they would fix how they look.
Here is the one farthest along and on his last leg before being complete. Looking like the lesser is going to turn out better than the full hiryu......... Something wrong with that picture in my mind. Anyway two more Dread Pirates and he finishes up. Going to drop 120 Parry, Wrestle, Bushi, Tact, and Anat on him in the last round and see where the HP end up. 
