Paint Spidering on roof corners

[Marc87GN]

I have owned 3 different G-bodies(82 Cutlass, 88 Cutlass & now GN) and they all did this. Is there a polish I can use to hide the cracking/spidering before I have the entire car painted? I plan to do this in a year or 2 after I have done all of the mechanical upgrades. It doesn't look terrible because the lines are thin, but I see them and it annoys me because the rest of the paint looks great.

Thanks
Marc