Hello Gromacs Users, "gmx sasa" in Gromacs 5.0.6 returns a message stating that all atom radii are obtained from the following reference: "A. Bondi, van der Waals Volumes and Radii, J. Phys. Chem. 68 (1964) pp. 441-451" Can the user still control the radii used by editing a local copy of the share/gromacs/topvdwradii.dat file? Best, Eric