They Call It the Kissing Disease

One allowance here buys 1,245,654 EXP, the best on the Lv 58 Fisher fieldcraft rung — matched exactly by 1 other leve of the 3 there, with the rest trailing at 747,393 EXP or less.

On whether to wait: the best Lv 60 Fisher fieldcraft leve returns 1,267,826 EXP per allowance, 2% more than the best on this rung, while the Lv 56 rung behind tops out at 1,191,215 EXP.

At Lv 58 this data holds 54 leves paying EXP across 3 categories: the 3 Fieldcraft ones average 1,079,567 EXP per allowance, the 24 Tradecraft ones 443,090 EXP and the 27 Grand Company ones 228,371 EXP, which puts this leve 15% above its own category's average.

Nothing on the turn-in list is craftable in this data: Yalm Lobster ×3 has no recipe here, so 3 units must come from gathering, a vendor or a drop.

Helix, Azys Lla issues 3 leves in this dataset, all of them Lv 58, every one of them Fisher fieldcraft.