Adding to the menu

[trekkeruss]

Opti-seal is like 3-6 months of protection right?

I don't know, but like the Sonax and Iron X, I don't think using a sealant and a wax is necessary either. I guess if you were always detailing Ferrari's and the like it might make sense, but as Scott said, most people don't care about (and want to pay for) that level of obsessiveness. Granted, I am not a pro, but I would use one or the other, not both.