+1 with Barry --
Have used the L/C Cyan (Blue) Pad many times with Meguiars 205, and it turned out way better than the expectations I set with the Client on the vehicle.
Am currently using this combination on a 1991 Chrysler/Maserati built Jet Black Town Car, with 14k of hard miles. Totally swirled, scratched, cats lived on the hood, etc., and it is correcting out beautifully with this medium soft to hard paintwork. You couldnt tell until I corrected it, but the color is actually a very deep purple underneath all the garbage that was on the paint.
I have also used the L/C Purple Foamed Wool and the Meguiars 105/205 products, and remarkably, these foam wools finish down really, really nicely, with great gloss and clarity.
Depending on the color, and what you are doing/promised/etc., with your Client, it might also be good enough for their needs....
But the 205 product will always bring the greatest clarity using the products discussed above..
Have also used Meguiars D151 successfully on many vehicles where the
Client just wanted a quick clean up/gloss, and didnt care about extreme paint correction, and the color was light enough that it was not going to show much scratches, etc., anyway. This product will cut quickly, down just so far and stop, so your pad selection will make a difference too, along with all the other variables involved.. And since it leave a little protection on top, that is also a bonus for a 1-step..
Good Luck with your project !
Dan F