Aetherquake

One allowance here buys 972,926 EXP, which places it 3rd of the 3 Lv 72 Fisher fieldcraft leves that record EXP. The best of them, Jelly Salad, returns 1,621,544 EXP for the same allowance, 67% more.

On whether to wait: the best Lv 74 Fisher fieldcraft leve returns 1,816,458 EXP per allowance, 12% more than the best on this rung, while the Lv 70 rung behind tops out at 1,503,258 EXP.

At Lv 72 this data holds 27 leves paying EXP across 2 categories: the 3 Fieldcraft ones average 1,405,338 EXP per allowance, the 24 Tradecraft ones 590,811 EXP, which puts this leve 31% below its own category's average.

Nothing on the turn-in list is craftable in this data: Finned Eggplant ×9 has no recipe here, so 9 units must come from gathering, a vendor or a drop.

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 2,918,778 EXP and 2,049 gil for the 1 allowance it costs, or 2,918,778 EXP per allowance.