Thanks for that cee-dee, I hope you didn't spend the last hour trawling around for that link  All I know is that it was used a lot when I was a Kid and now it's hardly used at all..........so something has been enough to put an awful lot of people off of using it. I certainly wouldn't want it used, to fill out anything I was going to put into my Stomach and as there is a lot of discrepancy in the evidence at hand........I'll just carry on playing it safe.