After reading the Gazilli discussion above, i arises other questions. It seems that Gazilli can shows the shape and strength of the opener effectively but tells nth on the responder. So what should be the later auctions after telling all the shape and strength? Cue-bidding seems not so effective as only one side is conveying information. Does it need some relays for controls/high cards just like some relay systems? any relevant examples from the world championship players? :) Thank you :)