Thanks for the info David, just one thing though. The Dolphin chip samples I have, have rounded smooth edges, not sharp at all. This is why I had assumed that Dolphin made quite a number of Aussie chips in play now, they seem very similar to the samples I have. I have attached a pic of a Dolphin sample I have next to an Adelaide RLT at the bottom of the page.

Also, if you are able, would you be able to help me identify the manufacturers of the Aussie chips in the pic. I have now gone beyond confused & frustrated trying to work it out. Thanks again David, any & all assistance greatly appreciated.