Great news about the MOS progress for the G5 Poweracs.
About the LCS issues...
I own a G5 Quad. The LCS on it is still running fine, with no leaks, or issues.
AFAIK, the latter produced LCS G5 Powermacs have an improved LCS system over the kind that was originally released and is/was prone to more frequent leaking and issues.
I did however see in general even the G5 Quad (which falls under the latter produced G5 systems category) mentioned over the internet as causing issues and leaks, so I guess no LCS G5 Powermac is completely immune to risks of LCS issues.
Does anyone have any feedback about their LCS system on a G5 Quad?