Ever do a long tour? Ever ride in the country... ever ride where there is no shoulder... or Bike Lane.... I assure you it is not a garbage concept. I don't know how much more visible it may make you, but I can assure you that trying to ride far to the right in certain conditions just ain't gonna happen.

All HH is saying is don't hug the right (or hide in a bike lane) if there is no other same direction traffic... riding more to the left will make you more visible to motorists on cross streets, and may make you more visible to same direction approaching traffic... but the whole concept requires moving out of the way before you are a burden to any approaching traffic.

Of course there is no way to do this on some urban roads, where the motorists don't even give themselves a 2 second gap between cars (quite often around here). You have to have room to move left... and that room means gaps... good decent gaps.

I find that during my commute hours, there are few gaps... although I do (and this is NOT DLP) ride left in some areas and take the lane simply because there is no other safe way to ride some roads. But that is not DLP.

During recreational rides, I find less traffic... and in times, I ride out of the BL toward the right tire track. And I watch for approaching traffic and move left before it arrives. It is that simple.

BTW I should never look like I am "weaving" to anyone... because I would be riding to the left long before any traffic approaches me or saw me... to that approaching traffic, I would only appear to be already out in the lane and moving right, for them.