Buy an item on Caerleon's normal market and sell it to the nearby Black Market. Distance disappears, but margin still depends on depth, quality, fees and execution.
No intercity transport: both operations happen in Caerleon. You must still confirm that you are buying the exact quality and enchantment paid by the Black Market order.
The Black Market module can source goods from several cities and include dangerous transport. Flip compares only two markets inside Caerleon: its normal market as origin and the Black Market trader as destination.
This removes intercity trips from the operation, but not competition, taxes, changing prices or the possibility of buying units the order no longer absorbs.
The application can also estimate break-even: the minimum Black Market price that keeps the operation from losing silver.
One item name may be divided into tiers, enchantments and qualities. Normal, Good, Outstanding, Excellent and Masterpiece must not be mixed. An attractive order for Quality 2 says nothing about the normal version.
Use filters to narrow the universe, but compare all relevant matches before discarding a whole family.
The best price may cover only a few units. Buying a lot can raise average cost as it consumes levels; selling can exhaust the order. Rankings should therefore use executable units rather than one price pair.
The Flip tab works exclusively with Caerleon and the Black Market. The red control communicates context but does not add other cities.
Tier, enchantment, quality, depth and data age must all meet profitability criteria together.
Not between the two markets in the strategy. Bringing capital or goods into Caerleon is a separate decision.