OK, so contrary to what most people here seem to be doing, I switched from Blackfire to Pinnacle.

While I liked the wet look of Blackfire, I'm more impressed with Pinnacle Paste Glaz on my PPW. Yes, it won't be as durable, but it can be layered like Blackfire. I plan on waxing every other month anyway. I don't mind the extra work... It's a labor of love. Also, Paste Glaz is buffed wet, so you don't have to wait for it to dry... Very easy to apply.

It's not so much natural vs synthetic as it is personal preference.

Sorry, I don't have a digital camera, but I'm going to try borrowing one.