Straight and forward, this is one of the most obvious brawler builds for the latest CTF variant. Adjust the armor distribution according to your preferences. It's sufficiently fast for a heavy mech and provides a good pin point damage while the known general disadvantages of the chassis are still there. The ECM makes it difficult aiming for damaged parts, though, so there's at least a small gleam of hope. JJs would have been nice on this variant, but probably a tad bit too good.
Well, you are adding to the speed , agility and twist speed of the build, but are loosing on the cooling efficiency. It's definitely a question of play style as I for my part would hate to be in the middle if a brawl and unable to fire the final alpha for finishing an opponent only by going into certain heat shutdown. Therefore my proposal is more balanced between speed and cooling efficiency than your's.