It depends if you are willing to lose GP, or you wanna go slow. SInce your getting SC hammers, I suggest you smith the best thing you can. If you research about smith, no matter what you smith, it gives the same exp:bar ratio. Meaning you smith 1 iron bar, you get 25xp, 2 irons bars, 50 exp etc. Since your able to smith mithril, keep in mind what are you going to make? What item cna you smith, that can be sold back to GE to minimise your losses. Calculation: Price of item smithed - price of bars used = Loss that you'll make.( You'll want this to be as low as possible.) Hope this will help you!