This X1000000000.
I maxed out E. Weapons and would never do it again. I'm rerolling my character. The ONLY weapon that is truly useful in E. Weapons is the Pulse gun, that little bugger's a beast. Everything else in E. Weapons has a bigger brother that's more of a badass in Guns.
Also, flamers svck, OP.
They don't do jack squat on armored opponents and armor pen becomes a real issue on some of the tougher enemies.
You ever tried using an Incinerator on a super mutant brute or giant radscorpion?
Works really well.
How you use it is:
1. Shoot some fireballs onto the enemy.
2. First one, to set it on fire.
3. Then two more to give additional fire and let it's "damage over time" stack.
4. Hide away and let the fire work it's magic.