A Miss and a Hit

One allowance here buys 652,790 EXP, which places it 3rd of the 3 Lv 76 Carpenter tradecraft leves that record EXP. The best of them, The Right Tool for the Job, returns 919,160 EXP for the same allowance, 41% more.

Across that rung the return runs from 652,790 EXP to 919,160 EXP per allowance — 3 distinct figures spanning 41%, so the wrong pick leaves 266,370 EXP of the allowance unspent.

On whether to wait: the best Lv 78 Carpenter tradecraft leve returns 1,103,750 EXP per allowance, 20% more than the best on this rung, while the Lv 74 rung behind tops out at 646,380 EXP.

At Lv 76 this data holds 27 leves paying EXP across 2 categories: the 24 Tradecraft ones average 754,791 EXP per allowance, the 3 Fieldcraft ones 1,812,275 EXP, which puts this leve 14% below its own category's average.

Sandteak Longbow ×1 is a Lv 76 Carpenter recipe, 2 steps deep through 4 intermediates, costing 28 units of raw material and 52 crystals.

Handing that in returns 23,314 EXP and 59 gil for every unit of raw material the order swallows, and the tree needs Alchemist, Blacksmith, Carpenter and Leatherworker.

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 1,958,370 EXP and 4,971 gil for the 1 allowance it costs, or 1,958,370 EXP per allowance.