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Voicelessness in English coda stops can be produced with either glottal spreading or glottal constriction, with consequences for voice quality of preceding vowels. Recent evidence from electroglottography (EGG) suggests that in Australian English voicelessness is achieved via glottal constriction for /t/, whereas glottal spreading is the strategy for /k/ and no consistent pattern is identified for /p/. However, EGG measures glottal state indirectly via electrical impedance and provides no direct information on supraglottal configuration, which may play a role in constriction. In this paper, we combine EGG with laryngoscopic imaging to investigate glottal/laryngeal settings during voiceless coda stop production and assess the extent to which inferences from EGG align with observed glottal/supraglottal behaviour. Results provide support for recent findings and reveal that constriction is the preferred strategy for voiceless stops at all places of articulation in phrase final position.