If your talking about this kit: If you’re in the market for a dual action polisher, look no further than the Porter Cable 7424!
, that's a good one to start with. The pad sizes are the best for that particular machine and you should be able to do some decent correction with the polishes you already have. Try those polishes first because buying from Autogeek can become very, very addictive!
This kit is an even better value: Wolfgang Duo & Porter Cable 7424XP FREE BONUS
, unfortunately it only comes with two pads so you'd probably want to invest in a 6-pack of 5.5" pads. You can also ask for the pads in the kit to be changed to the 5.5" size without a problem. If I were you, I would ask for the two pads with the kit to be changed to 2 orange 5.5" pads and the 6-pack kit can look something like, 2 orange, 2 white, and 2 gray pads.
Enrique - Amateur Detailer Extraordinaire
"Man is an emotional animal, occasionally rational; and through his feelings he can be deceived to his heart's content." - Durant