True. Either way you do it it'll work im sure. I got some side growth growing on my one plant and it's all from the colas pulling open and exposing the inside of the plant. If you make the sides the top you'll have no issues.
Gives me something to think about. I actually had an idea, with like a tunnel, made out of mesh/screen material. Running the main stalk horizontal through the tunnel, and having all the growth growing up and to the sides grow into the screen, similar to a scrog...
Not that it wouldn't work but I think the V-scrog would be less growing. If yougrow into the v you're gona have veg going through the screen way sooner then if you grow into a /\ shaped support. You have to grow all the way to the top before you can start feeding leaves through the screen.
It'll work but the other way seems more practical.