Two perceptual features can be compared faster if they are part of a common object. This same object advantage has been demonstrated amongst others by Behrmann et al. (1998). However, the stimuli used by Behrmann et al. are either confounded with the orientation of the to be judged details (X-shaped stimuli, Exp. 1) or the perceived objecthood of the occluded stimulus is vastly reduced (V-shaped stimuli). We avoided these issues by implementing slightly curved X-shaped stimuli that remove the confounding with the orientation of the to be judged details and at the same time create a strong impression of two superimposed objects. We found that the same object advantage could only be replicated in cases where the to be judged details are different. If the targets are identical, a same object disadvantage emerged. These results replicate findings of Chen and Huang (2015) with response times as the dependent variable. The same object advantage (for different targets) and disadvantage (for identical targets) does not depend on whether the object is shown in front of or occluded by the irrelevant object confirming a central finding of the Behrmann et al. (1998) study.