Evening Mike, or is it mourning for you?
I was always told to saddle them individually
That could be interpreted as a NEC violation unless the saddles where non-magnetic.
300.20(B) Individual Conductors. Where a single conductor carrying alternating current passes through metal with magnetic properties, the inductive effect shall be minimized by (1) cutting slots in the metal between the individual holes through which the individual conductors pass or (2) passing all the conductors in the circuit through an insulating wall sufficiently large for all of the conductors of the circuit.
Have you ever found the separate saddles warm or hot where used individually?