The important thing is that

來源: 於 2003-11-03 13:46:00 [舊帖] [給我悄悄話] 本文已被閱讀：次

you may not be able to waive your J1 even if you succeed in getting J1 this time. Chinese embassy will never waive J1 if it is transfered from other visa. Be careful! My suggestion is not to apply for J1.