About 15 months ago on a new car I corrected and applied Cquartz UK followed by gliss. I think how water acts on the paint there is still some level of cquartz left but figure should be redone soon before it gets too hot for comfort in the garage. Would a "quicker" once over with a medium cut polish on an orange pad be ok choice for prep prior to applying a new coat of cquartz uk and gliss again or does a heavier compound need to be used? I have some menzerna 2500 and also 400 already but could get something different if better choice is recommended. The paint still looks fairly good and is white to begin with.