I wouldn?t raise your prices; I?d spend more time buffing. There?s really no way any kind of quality correction can be achieved in 1-2 hours. I am simply at a loss for words if you believe that you abrade away enough paint to level the paint and restore a high gloss in 2 hours vs. actually removing paint and polishing in 8 hours (or whatever). So while I do applaud the fact that you cut time from the process, I would hope from a moral stand point you explained to the customer that instead of removing the defects and polishing the paint (which taken longer) you choose to remove some surface damage, but filled in the rest. Some clients only care about the end result; others want a permanent solution. Glazing a car with a one step is going to mean defects come back after a time. IME, a lot of people are going to notice this, in fact I built my client base off of car washes & detail shops that were doing the same process. Charging 200-300 dollars and having defects return. I told them for 900-1200 I could fix it permanently. It's all about perceived value, but then again, that is assuming that you are running an honest shop and educating the client that you really aren't making the paint look as good as it looks when they pick it up. You are making the car look as nice temporarily, but you are also filling in a lot of defects. Perhaps the people taking 6-8 hours are really removing defects, so in this case, I think your results would be substandard. And if you are really telling your client you are doing the same work in less time (with better results even, lol), and not telling the customer that you are not correcting your paint, then I don't care how much money you make, in my eyes it is the same as fraud. The decision is totally yours. IMHO being sucessful in detailing is all about maximizing profits & and being able to build value.
