I use three Torus units and they are staying put.
They replaced Shunyatas even with dedicated lines.
Huge difference musically and superb protection.
never tried the Furman.
The difference shocked the heck out of me as someone mentioned to me that having gobs of power in reserve for the amps makes a huge difference.
It does and the Torus are staying put
.
have had mine for a few yrs. now and nadda problem.