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In [Blokhuis and Lavrauw (Geom. Dedicata 81 (2000), 231-243)] a construction of a class of two-intersection sets with respect to hyperplanes in PGðr À 1; q t Þ; rt even, is given, with the same parameters as the union of ðq t=2 À 1Þ=ðq À 1Þ disjoint Baer subgeometries if t is even and the union of ðq t À 1Þ=ðq À 1Þ elements of an ðr=2 À 1Þ-spread in PGðr À 1; q t Þ if t is odd. In this paper, we prove that although they have the same parameters, they are different. This was previously proved indoi:10.1006/jcta.2002.3289 fatcat:durmbtgmynelvgpv32mqkzxziu