Will that be DQ or points off?Nope. You can tell as soon as they dry off after hatch. If they have chipmunk stripes they're not pure buckeye, or will not be quality/SOP. I have 3 that do not have the stripes so far. Here's hoping that they're pullets.
Are you working on conformation and color at the same time? Most recommend working on conformation first and then color.
I hope you do well at the shows!