[Keith wasn't using a particular style, but he was fast and agile, plus aggressive. He was willing to take a hit if it meant getting one in. However, like Cass, because they were training and sparring and this wasn't an all out fight, he also pulled his punches enough that there wouldn't be any major injuries. They'd likely both come out of this with bumps and bruises, a few aches, but nothing serious.
The lack of a major height difference actually forced Keith to balance his style a bit more as well. He'd gotten used to fighting opponents much taller and much larger than himself, which had caused him to go low with his strikes often, using his legs and taking shots at the torso of his opponent, but he found that he didn't need to compensate for that with Cass. It was a good change, and helped him find a few of his own weaknesses, places he'd fallen slack and out of practice in.]
no subject
The lack of a major height difference actually forced Keith to balance his style a bit more as well. He'd gotten used to fighting opponents much taller and much larger than himself, which had caused him to go low with his strikes often, using his legs and taking shots at the torso of his opponent, but he found that he didn't need to compensate for that with Cass. It was a good change, and helped him find a few of his own weaknesses, places he'd fallen slack and out of practice in.]