Fastest/Best way to strip paint

! use 8" 80 grit on as much of the outer body as possible and move around a lot attacking the worst of it first then coming back to diffrent spots to make sure it dosent get heated up,i can strip the outer body of a complete car in an afternoon and spend about 15$ on disks and no chemicals to neautralize, then when I dissassemble the car the rest of the way I do the same with the insides of the parts and finish up with sandblasting the areas that are hard to reach,this has worked well for me over the years and seems to be cost effective for me,for heavy bondo areas switch to 36 or 40 grit on the 8 " variable speed