Thanks all, we already own 2 sets of four panniers, so we're not looking to buy more. It's mostly synthetics and light weight anyhow, as part of that weight is due to some cool weather gear we didn't take last trip that we probably need this time (Icefields). That stuff is bulky so it can't fit in smaller front panniers a la Machka. She gets off somewhat easy because I take the tent and the down quilt.