Does it exist?

I checked Rio, Frog Hair, Orvis, and Varivas and all stop at 7X or .004. I use 8X mono now but at times the curley cues you get from mono can be a pain with very light tippets.

BTW, today the Trico sippers on my home stream refused the usual 7X so 8X can be a necessary evil.

Thanks in advance!