Have you tried 303 Aerospace Nath? I use that, leave for at least 3 hours but generally over night, and then wipe over once done.
No more sh*te up the side of the car. It gives a nice Matte sheen (so no good if you want shiny) and lasts same as all the others I've tried. I still have a bottle of Megs Endurance too but not used it for a while.