So I recently acquired a centaur coke forge with a hand crank blower, and have about 200 dollars to spend on a solid fuel. Should I buy coal, coke, or a mixture? I want to mainly work on small to medium sized pieces (axes, large knives, some artistic stuff), and I'll be forge welding. I know that coal is better at creating a "cave" as it turns into coke, but the coke will burn cleaner and I feel like it would be more efficient to go ahead and buy what I'm trying to turn the coal into, especially since they're the same price. Any suggestions?