I think I posted this already further up in some form but some possible rules for minor suit slam auctions.
3 level suit agreement with slam interest (eg 1NT - 3m):-
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3m+1 = Frivolous (usually declining partner's slam try)
others = cues with serious slam interest
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3 level agreement without known slam interest (♣):-
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3X = Standard - usually a NT probe (or double fit agreement if that is logical for the auction)
4♣ = conditional key card ask (ie 4♦ declines a slam try; others accept and show key cards)
4♦ = RKCB
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3 level agreement without known slam interest (♦):-
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3M = Standard - usually a NT probe (or double fit agreement if that is logical for the auction)
4♣ = initiates a cue auction with 4♦ representing clubs
4♦ = conditional key card ask (ie 4♦ declines a slam try; others accept and show key cards)
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4 level agreement:-
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4m+1 = RKCB
others = cues
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