Angora blend for socks?

Has anyone knit socks using an angora-wool-nylon blend? I'm thinking about making a pair of socks from yarn I frogged from a vintage sweater. The yarn is 45% angora, 40% lambswool and 15% nylon.

Held double the yarn is slightly thicker than sock yarn, closer to fingering weight. Is 15% nylon enough to give the sock stability? I don't mind if it felts up around the heel/high contact areas.