We have 8 E6600 L709A436 right here @ixtremtek.com

Among others here are some Watercooling results:

- MAX FSB: 555MHz

- CPU-Z: 4284MHz @1.65v DMM

http://valid.x86-secret.com/show_oc?id=201100



- OCCT: 3702Mhz (529*7) at 1.485v DMM (1.50v speedfan)





- OCCT: 3802Mhz (475*8) at 1.585v DMM (1.59v dans speedfan)





If not the best, that's at least one of the best actual batches.