Correcting My Freestyle: Going from an S-Pull to an I-Pull

This is a nice clip here, maybeyou could watch this and tell me is it an "S" stroke or an "I" stroke??? YouTube - èåŽŸæºå*æ•æ¸¸æ³³-自由式 You may enjoy this butterfly footage also YouTube - èåŽŸæºå*æ•æ¸¸æ³³-蝶式 I couldn't get the fly video. Loved the first one. If that isn't an "S" stroke, I am really shocked. Love the animation sections too. Do you have the link to this? I tried copying the above, but it didn't work.

This is a nice clip here, maybeyou could watch this and tell me is it an "S" stroke or an "I" stroke??? YouTube - èåŽŸæºå*æ•æ¸¸æ³³-自由式 You may enjoy this butterfly footage also YouTube - èåŽŸæºå*æ•æ¸¸æ³³-蝶式 I couldn't get the fly video. Loved the first one. If that isn't an "S" stroke, I am really shocked. Love the animation sections too. Do you have the link to this? I tried copying the above, but it didn't work.