  We introduce a new technique, that we dub Born spreading, aimed at reducing
the number of negative-weight $\mathbb S$ events in the MC@NLO matching of NLO
calculations with parton-shower simulations. We show that such a technique,
based on a re-distribution of Born matrix elements in the radiative phase
space, achieves a sizeable reduction of negative-weight events at little
computational cost. The method does not induce any biases in physical
distributions.
