I am going with the HELL-ER-BUST color scheme of Edwin Heller and have a question. I can't find any clear shot (model kits or the real deal) of the demarcation between the upper camo color and the lower neutral grey.
Is the line between the two sharp edged, or not? Just want to know before I start masking it off as the crispness of the line will determine how I do it.

Hope this helps:

http://modelingmadness.com/others/features/wise/wiseheller.htm
and
http://modelingmadness.com/scott/decals/es/esip4808.htm

Cheers,
Joe

Thanks Joe.
The first image I have seen, but the second one I haven't. That one does help a bunch. It looks like a somewhat uneven pattern on the demarcation line, especially near the intake.

Brett, on the P-51-B, the standard OD/Gray camo scheme was soft wavy edges. If the top was two tone, it too was done with soft demarcation lines between the colors.

Joel