Lowrider, I have not compared KC's Court or Poseidon to earlier versions, but the 40th Anniversary Series are 2009 and 2010 remasters. As you explained, there great, everything you said is exactly how they are. Disk 2 on both is a dvd 2004 master edition which I do not have the set up to use, yet.
The bonus tracks are also a nice added plus.
The bonus tracks are also a nice added plus.