There Was a Late Fee

One allowance here buys 811,360 EXP, the best of the 6 Lv 58 Alchemist tradecraft leves that record EXP: the runner-up manages 536,700 EXP, 34% less.

Across that rung the return runs from 42,771 EXP to 811,360 EXP per allowance — 6 distinct figures spanning 1797%, so the wrong pick leaves 768,589 EXP of the allowance unspent.

On whether to wait: the best Lv 60 Alchemist tradecraft leve returns 812,920 EXP per allowance, 0% more than the best on this rung, while the Lv 56 rung behind tops out at 534,960 EXP.

At Lv 58 this data holds 54 leves paying EXP across 2 categories: the 48 Tradecraft ones average 327,945 EXP per allowance, the 6 Fieldcraft ones 716,251 EXP, which puts this leve 147% above its own category's average.

Noble Gold ×1 is a Lv 60 Alchemist recipe, 3 steps deep through 7 intermediates, costing 49 units of raw material and 51 crystals.

Handing that in returns 16,558 EXP and 25 gil for every unit of raw material the order swallows, and the tree needs Alchemist and Goldsmith.