Used the 30 * New River UQ from Arrowhead this weekend at the Jersey Hang. It dropped to 22* at night, and the UQ worked great, with just another layer in the WBBB slot as well. This is a good three-season UQ, and only a small mod was needed to get it a lot lower. The full length - I believe - had a lot to do with the comfort level, as well.
Good company, good product, good hang!