I really do not like the JJ tubes in anything i have tried them in. For new i like the gold lion range better. The first thing i did with my Mac gear was toss the JJ's that come stock in them. With all the rebranding going on it’s getting hard to tell what new production tube is what.
Other than that, I will stick to NOS tubes even the lower priced ones seem better to me. They are getting harder to find and the resellers are getting rather annoying with the lies, deception of new or not, so it's a crap shoot out there.