So you have "US Test Passed" on your certificate. Reading the FAA's guidance, if the instructor who did the training for the type held a FAA CFI, it will transfer to the piggyback and can then transfer to the stand alone. From the FAA's FSIMS:
6) Type Rating. When a type rating is shown on the U.S. pilot certificate (meaning a U.S. pilot certificate that was issued on the basis of a foreign pilot license), that aircraft type rating will be limited to “VFR ONLY” if the person has not passed either the IFP knowledge test or the standard instrument rating knowledge test and the standard instrument rating practical test (see § 61.65).
NOTE: Applicants who apply for a type rating with the notation “U.S. TEST PASSED” on their U.S. pilot certificate must have received the required training from a holder of an FAA flight instructor certificate with the appropriate ratings (see part
61, §
61.63(d) or §
61.157(b), as appropriate). If the aircraft type rating is for an aircraft with a gross takeoff weight of greater than 12,500 pounds, the applicant must also complete a background security check administered by the TSA. The reporting requirements of the TSA’s background check is on its Web site at:
http://www.tsa.gov/what_we_do/layers/afsp/editorial_multi_image_with_table_0215.shtm or at:
http://www.tsa.gov .
NOTE: Once the applicant has qualified for the “U.S. TEST PASSED” rating on a U.S. pilot certificate under §
61.75, the aircraft rating and/or type rating annotated with the notation “U.S. TEST PASSED” is eligible for transfer to a unrestricted U.S. pilot certificate without any further showing of competency or practical test if the applicant later obtains an unrestricted U.S. pilot certificate.