I got one sitting in my garage waiting to go in from Alligator Performance. They are all pretty much the same. The one thing I liked about the Beans unit is that they have the low profile one, which may or may not actually make a difference...but, I didn't like their studs and nuts exposed on the outside. Completely a personal preference there, because I don't see why they would be any better or worse. All of them pretty much are able to be done without dropping the tank, but for cheap insurance I am still going to drop the tank to check it out and do the harpoon mod while I'm in there...