The Helicity Injected Torus-Steady Inductive (HIT-SI) experiment investigates steady inductive helicity injection with the aim of forming and sustaining a high-beta equilibrium in a spheromak geometry using two semi-toroidal injectors. Results of experiments with unequal helicity injection rates produced the highest spheromak current (38 kA), current amplification (Itor/Iinj_quad ≈ 2) and poloidal flux amplification (ψpol/ψinj_quad > 6) to date. Single-injector operations establish a preferred direction of generated spheromak current for each injector depending on the sign of the injected helicity and its orientation relative to the confinement volume. Yet, the HIT-SI injectors prefer to drive opposing spheromak currents because they are mounted on opposite sides of the confinement volume. Single-injector operations also eliminate the spontaneous spheromak current flipping observed during dual-injector operations.