Using Adam's paste wax on my truck versus DP Max Wax I can tell the Adam's has a much deeper and more reflective shine, but costs twice as much (70 dollars). Max is what I use on customers cars unless they want to pay for an upgrade.
Looks like you ran the pad over the rubber moldings. My pads have NEVER looked like that after buffing a car with a B/C. Claying should remove the contaminants.