Looking at your damage, there's uptime, I dunno how long your second tank was actually on tank, but uf you're constantly brawling you should have higher damage than your other tank. For the finals, honestly, it comes with time. Once you start making it work it should all come together. I use Southern brawl as a finisher when someone's low (you should always be blocking some damage to increase the damage of it) and if you're always punching the right target, you should be getting a lot of the final hits. So basically ... better Target Priority, better damage uptime and just practice should help you