Enlistment Highs

One allowance here buys 418,810 EXP, which places it 3rd of the 3 Lv 72 Blacksmith tradecraft leves that record EXP. The best of them, Selective Logging, returns 954,450 EXP for the same allowance, 128% more.

Across that rung the return runs from 418,810 EXP to 954,450 EXP per allowance — 3 distinct figures spanning 128%, so the wrong pick leaves 535,640 EXP of the allowance unspent.

On whether to wait: the best Lv 74 Blacksmith tradecraft leve returns 646,380 EXP per allowance, 32% less than the best on this rung, while the Lv 70 rung behind tops out at 693,190 EXP.

At Lv 72 this data holds 27 leves paying EXP across 2 categories: the 24 Tradecraft ones average 590,811 EXP per allowance, the 3 Fieldcraft ones 1,405,338 EXP, which puts this leve 29% below its own category's average.

Deepgold Sword ×1 is a Lv 72 Blacksmith recipe, 2 steps deep through 4 intermediates, costing 22 units of raw material and 39 crystals.

Handing that in returns 19,037 EXP and 67 gil for every unit of raw material the order swallows, and the tree needs Alchemist, Blacksmith and Goldsmith.

The record carries a repeats value of 2. This site reads that as 2 further turn-ins on the same leve — an assumption, because the source data defines no meaning for the field — which would put the ceiling at 1,256,430 EXP and 4,431 gil for the 1 allowance it costs, or 1,256,430 EXP per allowance.