I want to love the chemical explosion bolts. I really do. But I truly cannot imagine a single build where you're better off with them instead of pheromones or tasers.

In this build of yours in particular, you are lacking sustainable single-target damage for dealing with tanks. That's exactly where the other two options shine best. They honestly would help round out this loadout much better. You can use tasers for AoE if you still want the most kills per Pheromone Canister.