My 17 Spyder is 100% wrapped with Xpel Ultimate.
My 16 Cayenne Turbo S is not wrapped but treated with Ceramic Pro.

I had an issue with my Ceramic Pro installer so I went with CQuartz over the XPel wrap on the Spyder. I will say I am very disappointed with CQuartz. After one drive the car retains dust. I can drive the Cayenne for a good two weeks and sitting in the garage looking at both cars, the Cayenne looks like it has just been washed.

I am not sure if the issue with CQuartz is with applying it over Xpel but it's just not doing the job. The CQ installer always advises me to apply "Reload" after every 3 washes or so, which I do, no difference.

I regret not going with CP on the Spyder with a different installer. I have spoken to one and he said the lambo would need to be stripped of Xpel and start all over again. That's roughly another 8k+ for the full wrap and treatment I'm just not willing to spend.

So, all that being said. Is the problem I am having with CQ retaining dust because of the product being applied over the wrap? Would CP applied over a wrap provide the same results as CQ does?