Cetane Boosters/Revisit?

[JPope]

"...Was reading about cetane boosters recently, most are made with nitrous oxide as the main ingredient. As most racers know NO is usually a gas. Apparently it wants to change back from the liquid form to gas in your tank in the process causing precipitates that form sludge in your fuel system. Not good, plus you lose the cetane boosting properties in just a few days.

This answered a question for me, I had gotten mixed results in mpg gain using Power Service cetane boost (silver bottle). After reading the NO article I now realize the mpg gains were only on tanks where I drove straight from one fill up to the next, when the fuel was allowed to sit in the tank, no gain. So now it appears beside possibly plugging up your system that cetane boost additives are a waste of money unless you use the fuel fast...." was posted by Bill Fleming on DTR in reposnse to a question about diesel grades etc.

This seems to follow my experiences (seat of pants) with the PS Silver, and maybe now I know why? Bill has a lot of knowledge and always seemed to come up with research on various topics in the past when here. With all of the past material available on additives (check search feature for many threads), including all of the discussion on 'Amalmagated additive' and cetane boosters in the past, does anyone else have the same experience/knowledge/research/results etc. on cetane boosters?