Hello, I am new to the forum and have recently purchased a flex 3401. Planning to us it to keep all my boy toys looking sharp. I am wondering what additional item I need to purchase to make the job as easy as possible. One of my toys is a boat which is the primary reason for the Flex. It is newer and in good shape so not in need of correction at present. Decided to go with the 3401 to learn how to use the machine instead of a rotary so maybe I won't over do it. What are the best pads colors and should I get different size backing plate and pads? Thanks in advance for the help.