Watch TIm McChesney or Matt Walker throw rodeos (particularly over 7) and tell me why you couldn't call them bios ala CR Johnson in Ski Movie III. To take it a step further, post a vid of a flattish rodeo 5 and see what sort of debate ensues.
Bottom line: Bios and Mistys don't look all that similar (now mistys and overflips...there's an argument), but definitively labeling inverted/off axis tricks is difficult and largely subjective.
I'm not going to offer a drawn out explanation, you've already made it clear that you're essentially clueless. All you have to do is look at video of the new-fangled "rodeos", then look at footy of 2002 bios.
Rodeos involve dropping shoulders and spinning...when spinning a rodeo over 5 or 7, the spin is set harder than the "flip", thus the "flip/dip/drop" doesn't really start until 180ish. Sooooo, even though you're laying "back" often your leaning towards the landing ala bio.
That's all I'm going to say. Anyone who can actually throw rodeos on snow knows what I'm talking about.
a misty is NOT simply a front flip 180, thats a barani
think of a misty as going up to a picnic table while running, then dropping one shoulder and rolling along it
they can be done in different styles of course, but in certain ways, they are exactly the same as an overflip
it really is the same thing
and in the end, it really doesnt matter, its not a huge deal, ski tricks just arent that black and white, in comparison to say, a kickflip and a varial
oh and spinning and flipping backwards does not mean its corked
its often a d spin, or just a really shitty full
that gets messed up often too