I have gone through the different posts trying to figure out the correct prep for the plastic to adhere new graphics. I just recieved my new XGX Graphics and can't wait to get em on... I just don't want them to bubble off...... here's my questions: 1. How hard is it to properly remove old graphics 2. How do I prep the plastic for proper adhesion of the new stuff? 3. How do you remove or knock down scratches so the graphics will be smooth? 4. Is there someway to polish plastic to make it look newer? TIA guys and gals!