"nstc safe" colors/setting

[basshole]

I am almost finally at that stage where I will be outputting a final movie.

I realized at some point that I may have an issue. . .my project uses some extreme white and extreme black, that is, white being 255/255/255 in ASP, and black being 0/0/0. In NTSC land, where I live, I understand this may be a problem. Last night I output something, with the "NTSC SAFE colors" setting on.

I dropped the output movie into final cut pro.
Looked fine, until the black in my output movie cut to the blank space/black in my final cut pro timeline. There I saw it darken, as the ASP movie's black was 7.5% and the FCP timeline black was 0%.

As I understand it (and I really never got solid on this) digital camcorders and HD (which I'm planning to output to) use a 0% black anyway, as opposed to 7.5%. IF you were converting to an analogue SD format, the boost from 0 to 7.5% happens automatically as part of that conversion process. . .in other words, you don't output your digital file with 7.5% blacks because then you get a double boost when you convert to analogue SD (in other words 15% black).

So, this leads me to believe that I should leave the NTSC safe colors setting OFF when I render my ASP movies out. However, will that screw me on the whites? If so, any easy answer? Only thing I can think of is to go back to every single place in each of the several projects that comprise my whole movie where I use pure white and lower it to 235/235/235, which seems insane.

FCP does have its own filters for NTSC safe, where you can specify what colors to clamp down on (i.e. leave blacks alone but clamp the whites to below 100%), but I worry that I'd see some kind of artifacts from doing it at this stage.

On the other hand, my color scheme is very simple, meaning I have very few gradients/very little shading, etc. Most things are just solid blocks of color, so even if the whites are clipped, will you even notice?

And if it matters, I'm planning on outputting image sequences instead of movies, as someone on here recommended that for best quality.