-Yamato had the ability to suppress a 4-tailed Naruto and also reacted in a way like he could suppress even more tails, when he was rushing back to the leaf during the Pain Arc.
--The only thing/s Yamato lacks is Chakra and Stamina.
--He is quite skilled in wood-release and only falls short to Edo-Madara and Hashi himself.
I would say he is better than Zetsu, Danzo and Obito with wood release.
-Yamato has probably 1/8 to 1/4 the skill Hashi has
EDIT: And this leads me to believe that Oro understood Hashi's DNA more than Madara did.
-Oro was able to have a person use Hashi's DNA in everyday life, while Madara could only create a clone that would help him stay alive and suck at combat