Tail Panel Paint Line - How Low?

[CudaA39]

Getting ready to paint the argent silver tail panel on my 71 Barracuda.  Want to confirm how low the argent should go in relation to the bottom line of the tail panel where it tucks behind the back bumper.  My assumption is it goes down to the bumper mount rail so you cant see body color in the gap between the bumper and tail panel?

Apologies if this is a repeat question, can't seem to find any definitive pics.

[MoparLeo]

  Try this