I received a pair of CSP750 MKII's from Bigfoot. One had a flaky 3 pin connector which I had to replace. You may want to keep on eye on whoever you have crimping those connectors. The other pump would occasionally not start on application of 12V, although it would hum and if jarred would then start pumping. One pump started out generating enough flow in my system (MCW6000 block, BI Pro II radiator, one CSP750, 3/8" hose) to create 24" of head, the other managed about 28-29" of head. One was also considerably noisier than the other. After both pumps had logged about 24 hours each they both generated a pretty much identical 31" of head pressure and they had quieted down noticeably. I have not had any leak problems with them. I have not seen the startup problem again either since they've been broken in. After my early concerns I'm actually quite happy with these pumps. I wanted a quiet pump, small, reasonably priced, 3/8" plumbing, with decent performance for moderately overclocked extremely quiet AMD64 machines. The CPS750 fits the bill nicely.
Hope this feedback is usefull.
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