PoE Explosive Concoction, Slayer builds

When Frostferno was in the game, EC had a 5.5 link with +8 gems that was highly possible to use. You would take Avatar of Fire, get a double corrupted Frostferno and now you had a cool non traditional setup. It was reasonable to use sapphire at least due to cold to fire on Frostferno. Frostferno is gone now though. After a lot of PoB work, I am of the strong opinion that EC is better off without Sapphire/Topaz flasks. This, imho, basically makes it a broken gem. 1) It takes solid investment to get the flasks to be useable over a longer period. If you go pathfinder, you have very little sy