Crunching the Numbers
Location
Required Items
Rewards
What the allowance actually buys
One allowance here buys 49,830 EXP, which places it 5th of the 6 Lv 35 Weaver tradecraft leves that record EXP. The best of them, The Wages of Sin, returns 115,720 EXP for the same allowance, 132% more.
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 20% below its own category's average.
Linen Hat ×1 is a Lv 35 Weaver recipe, 3 steps deep through 2 intermediates, costing 7 units of raw material and 17 crystals.
Handing that in returns 7,119 EXP and 33 gil for every unit of raw material the order swallows.
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 149,490 EXP and 693 gil for the 1 allowance it costs, or 149,490 EXP per allowance.