OP

Quoted from beatmaster:

a lot of sanding and buffing.
Here's the rundown;
(the key) i started to sand the lockdown bar with a 100 grit sand paper, next 180 (i might use a wheel on this one), 280, 320, 400, 600, 800, 1000, 1200 all that always in the same direction, always.
Buffing, i also like to use a power drill with buffing wheels, it gives me a better control in general and in tight spot.
The thing with stainless steel because of the texture it takes a lot of time, i can spend 15 - 20 minutes with a 100 grit sand paper alone, same for 180, as you go up it becomes smoother so it's a lot easier, at 600 it starts to shine, at 1000 it's pretty smooth, 1200 you remove all the fine lines (before that for the bigger ones). most of it by hand (a lot of time and elbow grease).
buffing,
good buffing wheels and paste.
i always use the same wheel with the same color (green for stainless steel), another to remove left overs and another wheel for final buffing (depending on the area i might switch between size or shape).
i always (most of the time, depending on the piece) buff in the same direction.
it's not easy but after a few pieces you get the idea, don't stay too long in the same spot, apply just enough paste on the wheel etc...
- i already the did 100 and 180 on the rear glass channel tonight, should be done tomorrow.