I think you're mistaken.
Choils are always on the blade, but can flow into the handle. Most are only sharpening features, that's where they got started from, with later designers growing them for finger gripping. A sharpening choil looks like this:
'Forward' just means it's in front of a finger guard on the blade, like so (another sharpening choil);
they call it that because some choils blend into the handle instead, like so:
I mean, if you dig around online you will find people calling them 'choils' even if they're entirely on the handle, but those people aren't using the correct word. I mean, it's not really the end of the world because most people would probably be able to guess what they meant, so if you go your own way and keep calling 'em choils I really won't mind. But technically when they're all on the handle, they're grooves.