We examine a recently published calculation which predicts an oscillat
ory behaviour for the decay of Lambda's produced together with a neutr
al kaon, and proposes a new expression for the wavelength of kaon stra
ngeness oscillations. We modify the calculation by imposing the requir
ement that the interference of the K-L and K-S components of the kaon
wave function occurs at a specific space-time point. With this require
ment, the unusual results predicted vanish, and the conventional resul
ts are recovered.