I am brand new to this great site and I am considering purchasing a PC 7424 polisher with Sonus SFX pad kit to apply and remove Z5 & Z2. Zaino is not real clear if there is any benifit over hand application. I have some light spider webs on a clearcoated dark blue gray car and did not have much luck removing all of them with a couple of hand applications of Z5. Any thoughts or advice from any of you experts!