Thanks again for the recommendations. We took your advice and followed the use trail through Echo Creek Valley and loved it. Didn't make it up to Reymann but we managed to swim in Nelson, middle Sunrise, and Tenaya, so we felt we had a good lake tour.
Heading west from Echo Creek we took a low route over to the Cathedral Fork drainage along the south slope of Cockscomb Ridge. I haven't seen that route described elsewhere, but I'd recommend it as an alternative for future archive searchers who don't want to climb over the saddle to Matthes Lake.
Mosquitoes seemed to be nearly gone in the high country (Aug. 12-15). 1/10 most places. 3/10 at Nelson and a few points along the trail. Maybe 5/10 for about an hour at dusk at the middle Sunrise Lake. But really not a problem. Wildflowers look like they're on their way out too, but there was still some color up there.
I was a bit disappointed in the Tom Harrison map for x-country because it has only 100-foot contour lines, which wasn't enough detail. But the terrain was pretty easy to read on the ground so the x-country part was easy.
Overall, a great trip.
Route map here:
http://www.flickr.com/photos/25652913@N03/4900413585/
Pictures here:
http://www.flickr.com/photos/25652913@N ... /yosemite/