I suffered through that whole sticker and it took me way too long. There must be a better way, and there is. Since the sticker would melt quickly and the adhesive would basically turn super soft I figured that I would just scrape it off with a putty knife. This worked but left a few scratches even though I went slow and careful.
So I figured since the sticker and adhesive are so soft and easy to push when they are heated up to the point of combustion, that I could just pull a rag over the edge of the putty knife and still push the hot goo off.
It worked great and didn't leave any scratches at all. The only thing to watch out for is the rag catching fire. With the heat gun pointed at the rag it would smoke when the heat was poured on. The sticker would turn brown in color but that's about it. The knife with the rag simply pushed the sticker right off in less than a minute of heating and a simple push of the knife.
Ahh so nice and fast! This is the only way to remove these crummy stickers.