Hello! I'll write again in english because it's a bit technic ^^'
I like the videos, but those tricks aren't really new in my mind.
The problem for me is that the "surrender" concpet isn't really clear... We can't use really I think this word to describe the tricks...
I think we can speak about the concept of "surrender": this is the using of a finger of the opposite hand to do a trick like a charge or a sonic, or a twirl... So this concept is quite old, since Eso has inveted his Waterfall.
But it's really interessant to developpe this concept =) and your variations are very nice.
I would propose to name the fingers, when using the surender concept, like this: RT, R1, R2, R3, R4 for the right hand, and LT, L1, L2, L3, L4 for the left hand. So for exemple the "surrender back" became: charge R2-L4 --> fingertwirl R1-L4 (in the video of the oser topic).
But we have to precise if the hands are opposite (like for the "surrender back") or parallalel (--> photos for a better understanding)
Opposite:
[img]
http://img237.imageshack.us/img237/7931/dsc01702mn2.jpg[/img]
Parallel
[img]
http://img237.imageshack.us/img237/4049/dsc01703ok0.jpg[/img]
Both can be used when doing a surrender variation, for exemple the "surrender sonic" (that I would named sonic R12-R1L4) is done in an opposite way on the vid of the other topic, but we can also do it in a parallel way, even if it's less feasible.
Here is my point of view on the question, it can be developped, I will post your vids in the "Labo" of the FPSB (sort of French research department...), they are really nice =)
