Making 2 pieces of heavy armor and 1 weapon Rewards: low-level blacksmith mats possibility of a blacksmith master writ or a blacksmith survey possibility of tempering alloy
Maximizing Master Writ drops:
maximise your skill to 50, have skill in Metalworking at 10/10 know as many motifs or blacksmithing furniture recipes as you can. The more research you've done on traits, the better the chance.
If you put skills points in Metal Extraction, you get more mats per deconstruction (saving you materials), Need to be made by the character doing the quest. Bought, traded or reward items don't count Dolgubon's Lazy Writ Crafter Addon (https://www.esoui.com/downloads/info1346-DolgubonsLazyWritCrafter.html) will save you time on doing these.