  In this work we study an extension of the commonly used 5F scheme, where $b$
quarks are treated as massless partons, in which full mass effects are retained
in both the initial and in the final state. We name this scheme 5F massive
scheme (5FMS). We implement this scheme in the \Sherpa Monte Carlo event
generator at MEPS@NLO accuracy, and we compare it for two relevant cases for
the LHC: $b\bar{b} \rightarrow H$ and $pp\rightarrow Zb$.
