So, jakes. Yes, they can be vicious (our three would wail away for most of the day and be pretty bloody- superficial wounds heal up quickly). Behaviour is variety independent (it is the individual turk's chops for action that tells). Pine tar tastes very bad and is a good topical antiseptic/antibiotic (toxic in large amounts internally), wear gloves and daub some on the heads/caruncles. The won't bite as much or with great enthusiasm. However, they'll continue to kick/wrap necks/thump chests and, in general, cause you some anxiety. Ours would go at it for a couple of days, then the two on the low end of the totem pole would form an alliance and attempt to do in the alpha a couple of weeks later.
Once they get to be a couple years old they do more kicking (why we keep spurs rounded off) and the sparring takes on a somewhat formal quality (same bad intent, not as much blood).