Good Day Josh,
WELDCOME TO THE ORIGINAL AWS WELDING FORUM!!! THE GREATEST WELDING FORUM IN THE WORLD...BAR NONE!!
I agree with Al. Axis is the same, joint position is the same. Only difference is which side of the pipe/tube gets attached to the support frame/pole. That has no bearing on the test position or results in any code I am even slightly familiar with.
Have a Great Day, Brent