This study partially replicates McManus and Marsden (2017), who found that providing L1 explicit information (EI) plus task-essential practice led L2 learners to make more accurate and faster interpretations of French morphosyntax. The current study removed the original study's L1 EI component to examine the role of the L1 practice. This design tested whether providing L1 task-essential practice only (alongside a core treatment of L2 EI plus L2 practice) resulted in similar online and offline learning gains compared to the original study's L1 EI plus L1 practice. We used the same online and offline tests, with a similar population of English-speaking learners of L2 French (n = 19). For accuracy and speed of online and offline L2 processing, the findings suggest that additional L1 practice without L1 EI was no more beneficial than L2 EI plus L2 practice alone, indicating that the original study's combination of additional L1 EI with L1 practice appeared to contribute to previously observed learning benefits.