The Wages of Sin
Location
Required Items
Rewards
What the allowance actually buys
One allowance here buys 115,720 EXP, the best on the Lv 35 Weaver tradecraft rung — matched exactly by 1 other leve of the 6 there, with the rest trailing at 105,270 EXP or less.
Across that rung the return runs from 43,560 EXP to 115,720 EXP per allowance — 5 distinct figures spanning 166%, so the wrong pick leaves 72,160 EXP of the allowance unspent.
On whether to wait: the best Lv 40 Weaver tradecraft leve returns 125,680 EXP per allowance, 9% more than the best on this rung, while the Lv 30 rung behind tops out at 99,220 EXP.
At Lv 35 this data holds 52 leves paying EXP across 2 categories: the 48 Tradecraft ones average 61,959 EXP per allowance, the 4 Fieldcraft ones 378,392 EXP, which puts this leve 87% above its own category's average.
Linen Coatee of Crafting ×1 is a Lv 38 Weaver recipe, 3 steps deep through 3 intermediates, costing 10 units of raw material and 23 crystals.
Handing that in returns 11,572 EXP and 57 gil for every unit of raw material the order swallows, and the tree needs Goldsmith and Weaver.