After my first pass I'm only using about two dots on the pad, so I'm going pretty dry. I think the orbital action tends to work the compound into the grooves of the denium causing it to load up rather than rotary which may tend to drag it out of the grooves. I'm getting that glossy layer on the pad.
Almost pulled the trigger on the DeWalt last night .. jeez, one of the highest rated products I've ever seen on Amazon. I'm still kind of feeling like I'd rather go slow and have about zero chance of burning through the clear with the oribital. I tried convincing myself I'd use the DeWalt on other products ... but who am I kidding, I've washed my 10 year old truck about three times, and I wouldn't touch the wife's BMW
Wish the Porta-Cable had an orbital lock out so it could be used as a small rotary. If I get tired enough of the work the DeWalt will be in the cards.