Drams,
I agree with Mr. Pipewelders response.
If ASME IX does in fact make reference to a specific 6GR qualification test position I am interested in learning what QW paragraph that is found in. there is a "Special Positions" provision, (QW303.3) that is an option that a fabricator may use to qualify welding in a specific orientation.
The only position pipe is rotated for performance qualification is 1G. Pipe may not be rotated in 2G, 5G, or 6G. (Both AWS and ASME).