Have the same opinion as you!Progressive Dynamics 4600 series (The smallest is I think 4645) is designed as a replacement for the "GUTS" of older converters,. You do need to add a jumper or connect blue and red wires together (forget which)
The difference is where the Magnetek 6300 is on the bottom of the list as far as converters go. the PD wizard is the top of the list. cookie clicker