About straining out stray Amidol...when I saw Michael Smith mix up some Amidol at a recent workshop, there were lots of little floaties (as opposed to floaters) and said that's normal and he doesn't worry about them or strain them. And it didn't seem to matter in the print.
One thing though...when he mixed it, the solution was kind of gray colored. When I mix it, it looks more amber colored, a little like Pyro. But there does not seem to be a difference in effectiveness.