Safety First
Location
Required Items
Rewards
What the allowance actually buys
One allowance here buys 418,970 EXP, which places it 3rd of the 3 Lv 78 Carpenter tradecraft leves that record EXP. The best of them, Off to a Good Staff, returns 1,103,750 EXP for the same allowance, 163% more.
Across that rung the return runs from 418,970 EXP to 1,103,750 EXP per allowance — 3 distinct figures spanning 163%, so the wrong pick leaves 684,780 EXP of the allowance unspent.
On whether to wait: the best Lv 80 Carpenter tradecraft leve returns 935,000 EXP per allowance, 15% less than the best on this rung, while the Lv 76 rung behind tops out at 919,160 EXP.
At Lv 78 this data holds 27 leves paying EXP across 2 categories: the 24 Tradecraft ones average 955,432 EXP per allowance, the 3 Fieldcraft ones 2,129,178 EXP, which puts this leve 56% below its own category's average.
Lignum Vitae Earrings ×1 is a Lv 79 Carpenter recipe, 2 steps deep through 2 intermediates, costing 13 units of raw material and 35 crystals.
Handing that in returns 32,228 EXP and 101 gil for every unit of raw material the order swallows, and the tree needs Carpenter 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 1,256,910 EXP and 3,930 gil for the 1 allowance it costs, or 1,256,910 EXP per allowance.