I just posted this at another thread but it may be applicable here as well:
I don't know about other colors but I have experimented with Duragloss and other products on my last two vehicles, which were a billet silver Honda Ridgeline truck and now a MB ML350 in Diamond White. Although I like to try other products from time to time, here is what I finally found to give me the easiest and best protection, along with the look I wanted and at the best price:
Wash with CG "Clear" car wash at the wax stripping ratio of 2oz shampoo to a gallon of water.
Clay with Griot's mild clay using Griot's Speed Shine lube.
Wash again.
Polish using P21S Paintwork Cleanser or Duragloss 105 - both did a good job using Griot's 6" polisher.
One coat of Duragloss 601/111 combo using the electric polisher and finishing pad. Mix one part 601 to four parts 111.
The next day put on two coats of Collinite 845 Insulator Wax (by hand).
I have left the 601/111 on without using the 845 (when I do I use two coats of 601/111) and frankly, there is not much difference in looks or durability but there is a slightly more glossy and rich look to these very light colors using the 845 on top. I've also used Griot's Premium Wax over the Duragloss and it deepens the color even more but only slightly more. I like this look but the problem is I must reapply the Griot wax more frequently. As far as the Duragloss 105 goes I believe it is a pretty good AIO type product (about as good as Klasse) but I think as a pure polish the P21S is better to get the paint in shape for the LSP.
After every other or every third non-stripping wash (by that I mean my weekly maintenance wash) with either Duragloss 902 or Meguire's Gold Class Wash and Conditioner shampoos (both are excellent and cheap), a "topper" spray of Duragloss AquaWax does a great job if 111 or any other sealant is your LSP. If wax is your LSP, I prefer either Griot's spray wax or OCW as my "toppers". The spray waxes naturally seem to help make the richer look of the wax LSP come out better, as one would expect from similar and compatible carnauba based products. Conversely, the AquaWax (which is actually polymer based and not a wax) enhances the "candied" look of a sealant LSP. AquaWax is an absolutely superb product not only as a "topper" but also as a drying aid after your car wash.
If anyone has a white or light silver car I believe that following the procedure I've outlined above along with the products I described, will give you good protection and looks without a whole lot of work - or breaking the bank.