Examples of the orbits of some of the globular clusters in our sample. The different colours correspond to the different potentials: Model-1 (based on McMillan 2017, in blue), Model-2 (based on Allen & Santillan 1991, in black), and Model-3 (based on Robin et al. 2003, 2012, in red). The orbits of clusters that remain in the inner few kpc are quite different for the various potentials, while as expected, the differences are much smaller for those that have pericentres greater than ~ 2 kpc (e.g. NGC6496, fourth row). In these cases, the location of streams, if present, can be predicted much more reliably.