Fish for Days

One allowance here buys 1,254,652 EXP, which places it 3rd of the 3 Lv 76 Fisher fieldcraft leves that record EXP. The best of them, Crab Corps, returns 2,091,086 EXP for the same allowance, 67% more.

On whether to wait: the best Lv 78 Fisher fieldcraft leve returns 2,456,744 EXP per allowance, 17% more than the best on this rung, while the Lv 74 rung behind tops out at 1,816,458 EXP.

At Lv 76 this data holds 27 leves paying EXP across 2 categories: the 3 Fieldcraft ones average 1,812,275 EXP per allowance, the 24 Tradecraft ones 754,791 EXP, which puts this leve 31% below its own category's average.

Nothing on the turn-in list is craftable in this data: Hucho Taimen ×3 has no recipe here, so 3 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 3,763,956 EXP and 2,244 gil for the 1 allowance it costs, or 3,763,956 EXP per allowance.