Sorry for the delay - project over and on to other things. Someone asked about sealing corners - on 3 I didn't - when I got to the corner I cut a V in the strip 75% cut 25% untouched. Makes for a small radius on the outside, silver, but a nice L inside. On the 4th I cut at a 45 and cut the each side about .001" longer (I've got a really good eye....) so the strips touched real good (0 gap) and then painted the cuts with a bit of RTV and put a strip of mylar tape around the corner. (my middle initial is A). Its' been 9 months and the only problem so far is that the dirt that collects on the outside stands out more than before - bummer -