QUOTE(eprince @ Jan 13 2016, 04:35 PM)
I guess you have same situation with me. Soft99 silver tin effectively to hide most of swirlmarks but will all swirl mark will come back again after 1~2 days. Recently I was tried up Turtle wax Renew polishing compound by hand on a test spot, but the results was disappointed. Seem like totally no diff before and after after polishing with foam pad. Maybe I am using wrong technique or what....will try again on coming weekend if I free.

My friend mentioned that it could be alot of factors in producing a swirl free marks.
I have no problems running Soft99 on my car which is white (no swirl marks). The black car however is my wifes.
My friend suggests to use a different approach to black cars and he recommends the Meguiars Swirl X and the Ultimate Polish.
Not a Meg's fan but apparently thats the product that works on black cars.
For Soft99, I believe it works best on bright colored cars but for darker cars we might have to use a different polish.
I might consider the Meguiars Black Wax if the Ultimate Polish doesnt work on my next pass.
Will update more if I happen to have the chance to do so.
But I am willing to accept any further inputs such as Foam Pads, Microfibre cloths or techniques even to achieve the black glossy finish.