This approach has been proven quite successful reproducing experimental pre-scission neutron multiplicities with an accuracy of $10 - 20 \%$ for nuclei ranging from $^{126}$Ba to the region of superheavy elements [@PNS00]. As our aim in the present paper is to investigate systems at lower energy, one has to be able to describe [*multi-modal*]{} fission caused by the competition between symmetric and asymmetric splitting generated by the quantal effects present at low temperature. Dealing with asymmetric shapes, we need to take at least two collective variables (e.g. elongation and asymmetry) into account describing the compound nucleus along its deformation process. For this purpose we choose to use the Funny-Hills parametrization and to restrict ourselves to the 2-dimensional ($c, \alpha$) deformation space imposing $h = 0$. Indeed, one can show that the influence of the [*neck parameter*]{} $h$ can be considered as rather small, at least in the semi-classical limit [@CSLi00; @CS02].\

Entrance channel effects
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In order to solve the Langevin equation of motion one needs to specify the initial conditions of the trajectory (for reasonable statistics we need to consider $10^4$ to $10^6$ trajectories) from which the compound system starts and evolves either through the fission channel or ending 