ArtMetal

I'd like to kick off some discussion about the various methods of chasing/repousse. I've read about there being different methods and heard various styles mentioned, but never have had anyone explain the differences. Names I hear are Eastern style, Western style, Japanese style. The simplified description of the way I've been learning is:

1) transfer image to front of copper sheet
2) use a liner/tracer and chase lines of design in front
3) turn it over and push metal creating relief (repousse)
4) turn it over again and chase in details

I just purchased a UMBA video of Kirsten Skiles doing a "high relief" chasing/repousse at the 1999 Metal Madness. She started on the back by creating the relief by pushing from the back about 1/2" outside the design all the way. In doing so, she said she could get much higher relief without stretching metal too much. Then she turned it over and chased the design on the front.

What are the other methods? Which methods are these (western, eastern, etc.)?