[shrimpchips]

Profilux 100% of the way.

When I started looking for a doser, I was in the same place as you - Big Al's was having a sale on the SP300 (or whatever the 3 pump version is called) and I was ready to get it - but along comes the Profilux. It was more expensive by abvout $100, but the reputation behind Profilux, the versatility in programming and customizability, as well as the poor reviews behind the AM units led me to go with the Profilux (not to mention Tyler, aka BWI, a foum sponsor, really hooked me up with the Doser and Fauna Marin salts).

Just about a year later, I'm very happy with my purchase - and everyone else local to me who I've convinced to go the Profilux doser route can't agree more.