Evolution of mass transfer rate from a ﹩2.5\;{M}_{\odot }﹩ to a ﹩1.4\;{{\rm{M}}}_{\odot }﹩ point mass, assuming a mass transfer efficiency of ﹩1\%﹩. The upper panel shows the difference between the computed orbital separation and the analytical solution while the bottom one displays the evolution of the mass transfer rate, using two different schemes.