I am looking to strip an old steel frame. I like the look of raw steel that has been clear-coated. Will there be a difference between what shows if I strip it myself or have it blasted at a shop? Also, there are always ads for powdercoat removal where I live, and I see that it's cheaper to have a non-powdercoat paint job stripped, what are the differences between the two and when did powdercoat technology come into the picture?

Lots of questions. Thanks for any advice you might have.