What aquamist are guys running? The old race pump, the new HFS stuff, with the old shurflo pump or the new aquatec pump? I knew that the old race pump stuff was discontinued, but there are still 1 and 2 series, as well as PWI-1s floating around. I am looking into the PWi-1 stuff right now. I like the new howerton kit/pwi-2/rcc kit, but I don't know if that pump is fast enough to be as accurate as the old race pump or the new fast acting valve stuff. I have a PPS kit from Devil's Own in my car, but would prefer to trust something that can keep flow linear to pulses. And I don't see any failsafes for the rcc kit either. Does RCC use something else?