thanks for trying to make the video and write a how-to w/ pics on replacing rear wheel bearings.
i was once at mike's sold-svx listening to his bad bearing noise. his one was loud. yours seems to be louder.
i know mine hasn't been out. *fingers crossed* lucky me, for more than 3 yrs+++, still as quiet. recently, there's some noise on certain speed from the back, i'm quite positive it's the rear tires(maybe balancing/alignment stuff)(one of the rear tires got nailed and often on low pressure). the noise won't go increasing as i speed up from 0-70. at 90-100, it becomes quieter ... probably of the speed or some minor windnoise.
good luck on replacing your bearings...