Hot for Teacher

One allowance here buys 58,010 EXP, which places it 2nd of the 6 Lv 25 Armorer tradecraft leves that record EXP. The best of them, A Leg to Stand On, returns 69,150 EXP for the same allowance, 19% more.

Across that rung the return runs from 16,080 EXP to 69,150 EXP per allowance — 6 distinct figures spanning 330%, so the wrong pick leaves 53,070 EXP of the allowance unspent.

On whether to wait: the best Lv 30 Armorer tradecraft leve returns 67,730 EXP per allowance, 2% less than the best on this rung, while the Lv 20 rung behind tops out at 21,600 EXP.

At Lv 25 this data holds 52 leves paying EXP across 2 categories: the 48 Tradecraft ones average 31,772 EXP per allowance, the 4 Fieldcraft ones 204,269 EXP, which puts this leve 83% above its own category's average.

Heavy Iron Armor ×1 is a Lv 25 Armorer recipe, 3 steps deep through 3 intermediates, costing 27 units of raw material and 17 crystals.

Handing that in returns 2,149 EXP and 13 gil for every unit of raw material the order swallows, and the tree needs Armorer, Blacksmith and Goldsmith.