
So I know:
Overpowered and underpowered curves both shoulders to cover both directions. Overpowered works because of horizontal loop, the fly kicks around and the returning wave from the fly end curves the line.
Underpowered works because the loop doesn’t straighten. Also uses a horizontal loop and if you collide the loop with the water it doesn’t need to be a soft cast (using trajectories).
Both can be done with a close to vertical plane, but the loop still needs to be horizontal. This is harder because loop plane and rod plane are different.
It’s also possible to bend the end of the line with spirals and snap mends. Indeed any wave in the rod leg that starts early enough can travel to the fly. However in the case of the Snap mend the loop has almost fully unrolled.
There is Ling’s Cunning curve cast that relies upon tracking giving the curve layout. The same that we make by mistake in distance casting

It’s possible to use tailing loop curves. The Italian TLT cast that I can’t pronounce or spell invokes a very clever horizontal tailing loop that flips the fly one way and then the other.
Finally I have a Snakehead Curve Cast to cast around babies. Here I do everything the same but by tilting the casting plane to 45 degrees the fly kicks around the babies. This is a great cast because it doesn’t involve pull backs, is fast and easily done first time.
So that’s a start!!

Cheers, Paul
PS they can all be done with the DHD
