Haul is a one-phase, Pay With Profit evaluation.
Every other challenge asks for the full fee upfront. Haul flips it.
You pay a small entry fee to start, and the real cost, the Pay With Profit Fee, is taken from your funded profit later.
It is set at 5 divided by your FDR score, as a percentage of your initial balance.
Trade with more discipline, earn a higher FDR score, and the fee shrinks.