I had a bottle that has been sitting on the shelf for about 6 months now, and I never did even open it. I decided to do my after winter detail this week, and actually just finished tonight. I clayed, polished. then put down a layer of DG 105 then 24 hours later I followed with a layer of DP SS just to test it out beings it has been sitting there. What I found it that it went on and came off very easy. As far as the shine, I did not see to much difference going over the 105 which gives a great wet shine in the first place. As far as the feel it did make the surface slicker, not sure if this was the DP or if it was just because it was the second coat. It was dark when I finished, so I will get a better look at it tomorrow and will be able to give a little more detail. I will also try to take some pics and post. All in all, I was pretty happy with with the results and will plan on using again, but first I want to see how the protection is.
FR