Ring in the New

One allowance here buys 237,260 EXP, which places it 3rd of the 3 Lv 66 Goldsmith tradecraft leves that record EXP. The best of them, Best-laid Planispheres, returns 1,084,260 EXP for the same allowance, 357% more.

Across that rung the return runs from 237,260 EXP to 1,084,260 EXP per allowance — 3 distinct figures spanning 357%, so the wrong pick leaves 847,000 EXP of the allowance unspent.

On whether to wait: the best Lv 68 Goldsmith tradecraft leve returns 681,530 EXP per allowance, 37% less than the best on this rung, while the Lv 64 rung behind tops out at 709,140 EXP.

At Lv 66 this data holds 27 leves paying EXP across 2 categories: the 24 Tradecraft ones average 510,818 EXP per allowance, the 3 Fieldcraft ones 1,156,384 EXP, which puts this leve 54% below its own category's average.

Azurite Ring of Fending ×1 is a Lv 66 Goldsmith recipe, 3 steps deep through 4 intermediates, costing 19 units of raw material and 27 crystals.

Handing that in returns 12,487 EXP and 62 gil for every unit of raw material the order swallows, and the tree needs Alchemist 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 711,780 EXP and 3,516 gil for the 1 allowance it costs, or 711,780 EXP per allowance.