The Monuments Mages

One allowance here buys 283,930 EXP, which places it 3rd of the 3 Lv 54 Goldsmith tradecraft leves that record EXP. The best of them, The Unfortunate Retirony, returns 647,060 EXP for the same allowance, 128% more.

Across that rung the return runs from 283,930 EXP to 647,060 EXP per allowance — 3 distinct figures spanning 128%, so the wrong pick leaves 363,130 EXP of the allowance unspent.

On whether to wait: the best Lv 56 Goldsmith tradecraft leve returns 379,930 EXP per allowance, 41% less than the best on this rung, while the Lv 52 rung behind tops out at 629,850 EXP.

At Lv 54 this data holds 54 leves paying EXP across 3 categories: the 24 Tradecraft ones average 400,590 EXP per allowance, the 3 Fieldcraft ones 938,680 EXP and the 27 Grand Company ones 205,186 EXP, which puts this leve 29% below its own category's average.

Hardsilver Magnifiers of Casting ×1 is a Lv 54 Goldsmith recipe, 3 steps deep through 3 intermediates, costing 30 units of raw material and 39 crystals.

Handing that in returns 9,464 EXP and 11 gil for every unit of raw material the order swallows, and the tree needs Alchemist and Goldsmith.

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 851,790 EXP and 945 gil for the 1 allowance it costs, or 851,790 EXP per allowance.