Specified Michaels.
After opponents opens one of a major,
A cue bid shows Clubs plus the other Major
2 NT shows both minors
3C shows diamonds and the other Major
After opponents have opened one of a minor,
A cue is natural with 6+ cards,
2NT shows Hearts and the other minor
3 clubs shows Spades and other minor.
Thanks to Philippe Ribeyre at p.ribeyre@neccsd.com for submitting this convention.