Rob, Here is a link to a basic "How To" on covering:
http://www.rcuniverse.com/magazine/a...?article_id=67
Also, the link below will take you to one of the RCU reviews (GP Profile-38)
Scroll down the review to the section on covering and there are 3 videos that may help
http://www.rcuniverse.com/magazine/a...article_id=352