Dammit, just as I was leaning in one direction you come up with a very good point. Now that you mention it, I wonder if long periods of stretching could actually significantly add to lactic acid build up. From memory, when I was doing martial arts sessions that involved a lot of stretching, say for about 60 minutes of leg stretching. This did not apparently reduce lactic acid - but I have to consider that the stretching would take place after hours of hard physical work, like kicking and sparring, which already fatigued the legs.
hardgainer (let's keep this bumping)