To the Tops

One allowance here buys 581,670 EXP, which places it 2nd of the 3 Lv 66 Weaver tradecraft leves that record EXP. The best of them, Don't Sweat the Role, returns 625,040 EXP for the same allowance, 7% more.

Across that rung the return runs from 510,240 EXP to 625,040 EXP per allowance — 3 distinct figures spanning 22%, so the wrong pick leaves 114,800 EXP of the allowance unspent.

On whether to wait: the best Lv 68 Weaver tradecraft leve returns 1,057,080 EXP per allowance, 69% more than the best on this rung, while the Lv 64 rung behind tops out at 929,220 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 14% above its own category's average.

Gil ranks it differently: 1,172 gil per allowance is 3rd of 3 on the same rung against 2nd on EXP, with the best there paying 3,245 gil.

Serge Gambison of Healing ×1 is a Lv 67 Weaver recipe, 4 steps deep through 7 intermediates, costing 44 units of raw material and 52 crystals.

Handing that in returns 13,220 EXP and 27 gil for every unit of raw material the order swallows, and the tree needs Alchemist, Goldsmith, Leatherworker and Weaver.