The target undershoot model of vowel production predicts that vowels are characterized by in- variant formant frequency values, called targets, that are not reached under all circumstances. In a previous study, we analyzed the influence of speaking rate and contrastive stress on the formant frequencies and targets of vowels [a] and [e] in an [i__i] context. The results did not back the target undershoot model. In this article, we re-examine the same corpus and target estimates by means of a more robust statistical analysis than the analysis of variance we used earlier. The results corroborate the earlier analysis, i.e. the target undershoot model is not unambiguously borne out by our data.