Making crafting in Pathfinder 1e work

Why Craft As Written Doesnt Work An explanation of the flaws and bizarre results produced by the standard crafting system. Why Craft As Written Doesn't Work The Standard Basics: Find the item's price in silver pieces (1 gp = 10 sp). Find the DC on Table: Craft Skills. Pay one-third of the item's price for the cost of raw materials. Make an appropriate Craft check representing one week's worth of work. If the check succeeds, multiply your check result by the DC. If the result equals the price of the item in silver pieces, then you have completed the item. If the result doesn't equal the price, then it represents the progress you've made this week. Record the result and make a new Craft check for the next week. Bizarre Results Examples: Bizarre Example the First: Erlic wants to Craft a one-pound silver ball. His brother Rynook wants to Craft a one-pound gold ball. Even though Erlic and Rynook work on pretty much the same project—melting metal and pouring it into a mold—Rynook must spend much longer on his one-pound ball simply because it's made of gold. Bizarre Example the Second: Erlic wants to Craft some full plate. Full plate costs 15,000 silver pieces and faces an armorsmithing DC of 19. Erlic has Craft (armorsmithing) +8. Even if he rolls a 20 for each and every Craft check, it will take Erlic 28 weeks to finish his full plate. Bizarre Example the Third: Erlic decides to make a high-quality box (value 20 silver pieces, Craft DC 15) and Rynook wants to make a crowbar (value 20 silver pieces, Craft DC 10). Both brothers have only a +1 bonus as they are untrained. Assuming they both roll nothing but 20s, Erlic finishes his item first despite making the more complicated item.