I guess I should answer RKC and trust GIB, but felt auction had gone off rails and guessed to pass:
- 3nt I think should be changed to 13-17 hcp, 4 cd hearts (not 4-5), 4- spade, stop spade + stop diamond
- Don't think it should bother with 4c, but certainly if it does it shouldn't keep going over 4H.