Tube inventory has been bad at most of the usual suppliers lately. Nova is out of all of the 9/6/9 downtubes that I would normally use for MTB frames. Framebuilder Supply and Bikefabsupply don't seem to stock anything in 9/6/9. Vari-Wall is effectively out of the framebuilding tube business, with the exception of a few select builders.

Torch and File seems to have a decent stock of Reynolds tubes and also stocks some 9/6/9 downtubes that I will be ordering for some upcoming MTB builds.