just found this thread elsewhere while finsin out how to change timin belts for someone. what with the thread recently of shrinkin plastic due to ethanol, i thought this might be of intrest
http://goldwingdocs.com/forum/viewtopic.php?f=14&t=14679
Very interesting. But as several of the posters said in the thread, in the time that you are de-ethanolising the fuel you could be out there riding and burning it off. I could see it as being a good idea if a person likes leaving the tank full when they winterise the bike, but having said that SeaFoam or Stabil do a very good job of stopping the negative effects of ethanol.
EXCEPT, if the process would stop the dreaded fuel-tank swelling then it would be good to be proactive and start doing it.