I have search all around the internet before for pictures showing the difference between the fender scale and the gibson scale:
And now that I received my Gibson scale neck, and since I have a few spare necks hanging around, I would like to make a comparison post just to help those are searching out there:
(From Top: American Standard 25.5", Warmoth 25.5" and Warmoth 24.75")
(From Top: Warmoth 24.75", Warmoth 25.5" ,American Standard 25.5")
Notice that the heels are rectangular and shorter.
Hope this helps for those who are wondering the difference
And now that I received my Gibson scale neck, and since I have a few spare necks hanging around, I would like to make a comparison post just to help those are searching out there:

(From Top: American Standard 25.5", Warmoth 25.5" and Warmoth 24.75")

(From Top: Warmoth 24.75", Warmoth 25.5" ,American Standard 25.5")
Notice that the heels are rectangular and shorter.
Hope this helps for those who are wondering the difference