I just installed a PinScore JOLT power supply in my WW, choosing it over a straight rebuild. I like that it omits the high voltage section as the game was already converted to an LED display. I put the kill-a-watt on it and found it to be more efficient, as claimed, seeing more than a 10 watt drop. I'll take them at their word that it also doesn't generate as much heat. Previously putting LEDs in the back box and lighting panel insert had already dropped a good 40 watts, so I'm really liking what these kind of mods are doing for overall power use.