Deci - oh the Deci Red - beers in the Pig-and-tape - but I digress! In my opinion the range ACMI system has long gone past it's sell by date. I have extensive first hand experience of both types and RAIDS (or equal) wins everytime. The ability to load via solid state bricks, overlay replays on LFCs or ERCs and the inter-operability with unco-ordinated formations (i.e. unbriefed affili - TOO etc) makes it a far better training tool. Which is precisely why we are still waiting for it! The RAF didn't get where it is today by paying attention to the coalface and buying what they need.......