Results from the advection loop test in 3D, showing the time evolution of the magnetic field energy in units of the initial value. After t = 20 our uniform case has dissipated about 0.3%, while the cases with the density gradient Δ = 2 have dropped around 5%, which is similar to the dissipation displayed by the MFM/MFV method in Hopkins & Raives (2016). There is a tiny difference between GDSPH and TSPH, but this owes itself to differences in the initial reordering.