I am going to give up on getting comments back from Alphacool and just post the review of the block with my personal comments and performance results. That's probably all that anyone cares about anyway, right? The bottom line is the NexXxoS XP is a very nice performer, and if it had a different top plate I think it'd be pretty close to best mass-produced waterblock. A lot of the other reviewers and comments by salespeople have misrepresented it as a "low flow" block. It's nothing of the sort; this is a performance block that is very restrictive and demands a pump with good pressure capability (and a properly configured loop) to really shine. German blocks can't be all stereotyped as "low flow", guys.
Edit: Joe - It all works now

Vbb and PHP5 play nice now
http://www.procooling.com/reviews/ht..._waterbloc.php