The torroid II improved the "tone density" considerably, although the gain in efficiency was lower than some people optimistically told in forums - I measured around 1.5 dB increase. However the sound become more fleshed.
My A1 PX are also warming up after being disconnected for a long time - I want to listen to the new cj's with them, as well as with the Lamm M1.2 - David told me I must do it. But I know they need at less a week re-burn in playing 50% of the time after hibernation.