I think you have a polish not a rubbing/cutting compound I havn't seen that polisher so can't confirm above, doesn't mean it isn't any good. I would check with SCA and confirm what it is. In regards to speed yr pretty safe my bosch speed 7500-1200 rpm and oscillation 15000-24000 rpm. Honestly unless yr gonna mask all plastic, rubber and glass yr better off doing it all by hand because the stuff goes everywhere and the time you save doing it my machine you waste cleaning up the rest of the car and finishing by hand places where the buffer can't get to.
Now when they say "do not allow the polish to remain on the surface longer than necessary", what do they recommend as necessary? Does it tell you on the bottle, some tell you to remove while still wet and others tell you to wait till it dries to a hase.
Sunlight, you shouldn't polish in sunlight as the heat makes yr polish or wax dries to quickly and desn't give yr paint time to soak in all the oils etc...
The claybar, looks and feels like plasticine, is like a paint cleaner used to remove imperfecions in your paint as mentioned in my prev post, oxidisation, acid rain, bugs, droppings etc... its not as abbrasive as a rubbing/cutting compound.
I've attached a link to Mother Clay Bar, that's the one I use with great results, better and cheaper than Maguires.
Click on paint car and scroll down.
Happy Detailing, As you can see I'm obsessed with it.