It's done! I have another confession to make. I ran out of patience. I want to ride. So I brought it to Pioneeer Bike Shop in Oakland, and let Edmund (the expert) worry about the technical stuff. As always, he did a great job. I didn't put the Brooks on because I wear jeans most of the time and it's just going to damage the leather seat. The Avenir saddle I got from REI works perfectly for my 30-miles test ride in Iron Horse Trail from Pleasanton to Concord. Here's a peek of my Soma Juice Alfine 29er: