Completely Jaded, all you info about the Kenshi matchup is based off 'prediction', which makes it rubbish info. You can't predict 100% of the time, and the time you dont you're set back to full screen and start all over again. Your Boomerangs are reflected back at you with ease with reflection, and trying to use a Low Boomerang after blocked Staff Overhead is asking to be punished. If your tactics work against a Kenshi player, you need to face better Kenshi's, sorry.
The only thing that MIGHT be viable other than cross up punching is using Shadow Kick to make your way forward after you've blocked one of his special moves, but I'm sure I've been punished for trying and your forward dash goes nearly as far, with the advantage of being able to block.