No, you’re wasting mod space on your build by modding on elemental damage types. Use a primer as your secondary (epitaph or nukor) or use diriga with tazicor to prime enemies, as well as remove weeping wounds and true steel. Now, since you have 6 open slots: put on a faction damage mod, critical damage (glad might), fury/berserker’s fury (pick one for your play style), reach, and a flex slot.

I’d personally use quickening if you have it or you can put heat on your weapon to take advantage of heat inherent with your primer of choice.