Conserving Combat
Location
Required Items
Rewards
What the allowance actually buys
One allowance here buys 937,250 EXP, the best of the 3 Lv 74 Alchemist tradecraft leves that record EXP: the runner-up manages 646,380 EXP, 31% less.
Across that rung the return runs from 429,710 EXP to 937,250 EXP per allowance — 3 distinct figures spanning 118%, so the wrong pick leaves 507,540 EXP of the allowance unspent.
On whether to wait: the best Lv 76 Alchemist tradecraft leve returns 1,087,990 EXP per allowance, 16% more than the best on this rung, while the Lv 72 rung behind tops out at 698,030 EXP.
At Lv 74 this data holds 27 leves paying EXP across 2 categories: the 24 Tradecraft ones average 514,135 EXP per allowance, the 3 Fieldcraft ones 1,574,264 EXP, which puts this leve 82% above its own category's average.
Bluespirit Codex ×1 is a Lv 74 Alchemist recipe, 3 steps deep through 6 intermediates, costing 28 units of raw material and 53 crystals.
Handing that in returns 33,473 EXP and 155 gil for every unit of raw material the order swallows, and the tree needs Alchemist, Blacksmith and Goldsmith.