If you are using ethers, you should use 1 Fire 2, since with Flare+Convert+Flare+Ether+SwiftFlare you have some time left on your Raging Strikes still by the time the last Flare ended and you're stuck in transpose restoring mana.

If you aren't using ethers, you can add either 1 or 2 more Fire 2 to it so you use up your entire Raging Strikes duration to do damage.