We returned earlier this week from Hat Creek Rim, an annual camping and flying trip near Mt. Lassen, in California. Something like a hundred thousand years ago, give or take, the volcano erupted and the massive belching of lava from the cinder cones in the area caused part of the valley floor to collapse about 1,000 feet, leaving a rim. The volcanic rock fields absorb tremendous heat during the hot summer days, and in the late afternoon, between 6:30 and 7:30 p.m. the rim begins to "glass off." That is, a steady band of lift forms across the entire length of the rim (miles and miles). On good days, the band goes out better than a mile, and extends up several thousand feet. It can last until after sundown. I've landed in twilight many times over the years. It's our eighth consecutive year, 2nd weekend in August. It has become our premier family camping outing of the year, with mom, dad, brothers and their families, a cousin or two, and the odd guest(s) now and then. So, thanks to my brother and dad, I have some video this year. I'm flying a perfectly docile intermediate wing. About as forgiving as...