So i got this product on accident, i meant to order the 502 to follow up the 501. Anyway i laid it down with about 5 large pea size drops on 6" pad and had great results. Got more out of it than anticipated with minimal effort. It was verry easy to apply and remove. I am what one could call themselves semi- pro. I have a lot under my belt but still learning secrets to how to work various products.