I have NEVER used a float tool. The way i set the float is i put a piece of fuel line on the inlet, blow into it, and push the float up till the air stops coming out, The line on the float body should be parallel with the gasket surface on the carb body when it shuts off, if not, adjust tab on float accordingly; sounds like u know how to. if all parts are good i wouldnt sweat it, i get some spill from time to time.