forget it…I remember now…
Yeah its lifting palm…sorry…I posted before I thought about it. Im bad at remembering the chinese terms…and theres a few different ones for the same thing!! aarrggh!~
“From one thing know ten thousand” - Miyomato Musashi, Book of five rings
There is no right or wrong
There is no right or wrong way to perform a technique or form as long as it works for you!
Now obviously - if you do not maintain a bridge in your Tan Sao it will not work effectively. This would be a wrong way to deliver a technique - but in the same respect it breaks the idea of what ‘works’ for the individual. No two people will look the same doing SNT just as no two individuals feel the same while Chi Sau’ing.
If it looks different then the next you do not have to worry about who is right or who is wrong. Train, do some sparring and find out what actually works for you and what doesn’t.
Good life and good training!
Spectre
The key to understanding is to open your mind and your heart and then the eyes will follow.
“No two people will look the same doing SNT”
What about identicle twins that have been tought to do snt exactly the same 
There is no right or wrong way?
“There is no right or wrong way to perform a technique or form as long as it works for you!”
A technique is called a technique for a reason.
This is a common mentality amidst Wing Chun, which explains why it is so debilitated.
There is a right way, there are a couple of them, BUT there are definitely wrong ways.