Thanks for the feedback. There's an interesting article in Tech Dive Mag by Asser Salameh (the Dec 2010 issue) on accelerating no-fly times using surface 02. While there is an improvement in reducing the time using surface 02, it's not as much as I would have thought, especially when comparing no-fly times for air dives to trimix dives. Although in general, those diving on mix had a much shorter no-fly time compared to diving air (without the use of surface 02). but since we're talking about deeper dives here, the comparison is not as relevant but interesting to note.
I'm in the habit of padding my shallowest stops and breathing a rich mix on the surface for about 15 min., but more for an added safety precaution rather than in an attempt to accelerate no-fly times. It was also interesting to note in the article that one of the interviewees in the article mentioned padding the 12 meter stop on subsequent dives "in order to gain more efficient off-gassing of denser tissue compartments that don't respond as effectively at 6 meters". The article was from 2010 though so maybe there's some newer up to date information.
I guess for the time being I'll continue to pad my shallow stop, breath a rich mix on the surface for a few minutes as an added safety precaution, and give at least 24hrs prior to flying.