Single-event, drag-modulated aerocapture has become a promising control scheme in the past decade. However, these architectures suffer from exhausted control authority post-jettison. Multiple drag-skirt jettison events have been shown to enhance aerocapture performance, yet still suffer from unidirectional control capabilities. An apoapsis target biasing method is introduced to improve multi-event, drag-modulated aerocapture accuracy and robustness. Entry trade studies and Monte Carlo methods are used for comparison to the state-of-the-art, assessing performance at 400 and 2000 km apoapsis targets and at entry flight path angles of and . Two ballistic coefficient ratio sets are investigated for both two- and three-stage separation event architectures. A two-stage architecture equipped with the biasing method is shown to be capable of reducing mean apoapsis error to zero, while also showing standard deviation reductions in apoapsis error and circularization by 64.1 and 74.8%, respectively, compared with the state-of-the-art. A biased, three-stage architecture is shown to provide further benefit, reducing apoapsis error standard deviation by 70% relative to an equivalent unbiased architecture and 10.16% relative to a similarly sized two-stage architecture.