I tried to devise a relay structure for the 1♦ opener of a precision system I want to foister on partner but I'm terrible at it. I understand the fibonacci concept but I can't put it into practice. Anyway, as I failed, I thought I would try to borrow someone else's. Can anyone share something good? Our 1 diamond opener is 10-15 with exactly 4M and a longer minor or any 4441 shape. It would be nice if we could fit a NT range in there as well (I suspect it shouldn't be difficult as the 1D doesn't seem overloaded), but it's not crucial if it would spoil a nice method. Is it all off after interference? Assume no regulatory issues.