I am looking for a source for 7x and smaller tippet material in bulk. By bulk, I mean 100 yard spools or more.

I have been using 7x and 8x for light and ultralight furled leaders, but the 30 yard spools don't go very far. For heavier leaders, I have secured over 5,000 yards of 2 lb. monofilament
in exchange for a few leaders. Not a bad deal.

I know that several of the members of this board have experience making furled leaders and hope that somebody can point me in the right direction for tippet material.

I have done a fairly extensive search online, but have yet to find anything but the small spools.

Any suggestions?