A tanker driver releases the brake pedal too abruptly partway through coming to a stop. Based on how liquid surge works, what risk does this create?

49 CFR 383.119(a)/(b) (causes and effects of cargo surge; proper braking procedures for partially loaded tanks); AAMVA CDL Manual Section 8.2.2, p.8-8-1 (surge mechanics) combined with Section 8.3.2 'Controlling Surge,' p.8-8-2 ('Keep a steady pressure on

Releasing the brakes too early lets the surging wave regain momentum right as you're trying to regain control, which can shove the truck off its intended stopping path. Maintaining steady, consistent brake pressure through a stop helps absorb the wave's energy instead of fighting it. This is a core technique tested on the tank vehicle endorsement exam.