Hi Everyone- This is my first post on here. I applied CQUARTZ UK 3.0 on my car a year ago. I want to put a fresh coat on. Can I just go ahead and put another coat on top of this one, OR do I need to get rid of the existing ceramic coat and start from scratch?? Also, if I need to start from scratch, whats the best/fastest way to remove the existing coat of CQUARTZ??? Thanks in advance!