Just wondering if the Lee Kam Wing lineage of 7* incorporates much body and hand conditioning? From what I have heard of this system of mantis, it appears to be a wonderful and very comprehensive style.

I have heard that one of sifu Lee Kam Wing's books mentions iron sand palm , but have not read the book.

Does the style teach methods like striking a bag filled with pellets and using special iron palm medicines?

And is this something that is widely practiced in the Lee Kam Wing organisation, or is it reserved only for a few select students?

And how about breaking? Does the Lee Kam Wing system do things like breaking bricks or concrete? (I realise that bricks don't hit back and all that but I do think there is some value in being able to break as an indication of conditioning and striking ability.)