  Superconducting magnet training is one of the accelerator related issues
attracting attention due to significant operational costs and time budget
associated to it. It is especially worrisome that magnets based on the
next-generation Nb3Sn technology are affected by long training. While various
efforts are underway to better understand and resolve the problem a parallel
path could also be investigated, a path bypassing the issue. Following the
concept of fast induced over-current during magnet powering, FNAL has developed
an upgradable capacitor-based device to discharge through a superconducting
magnet at quench detection or operator chosen time. The 0.4 F/1 kV device has
been tested on a 1-m-long dipole-coil in a mirror magnet configuration and
conclusive results on magnet training elimination have been observed. In this
paper we discuss the main characteristics of the device, compare simulated
response and actual performance, elaborate on test drivers and outcomes. Next
steps and perspectives for future use are debated.
