Critique of Control and Practicality

it eliminates the need for masking and cutting in by hand. and it doesn't eliminate the need for masking and cutting by hand because you got to do your corners. I've tried it on trim edges. I've tried it a lot of different areas. Um, another thing, it's really difficult to keep it straight. It's really difficult to keep the disc moving at a nice steady pace. So, you can see where I've gotten run. So, here it is again. We'll check it