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2♥: three-card support, 7–10 dummy points (strong enough to accept at least one game try).
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4♥: usually five+ cards, a singleton or void, and fewer than 10 HCP.
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3♣: mixed raise (7-10 dummy points with four or more hearts).
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3♦: game try
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3♦: limit raise (11–12 dummy points with four or more hearts).
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3♥: weak raise (6 or fewer dummy points with four or more hearts).
Bergen Raises are on over a double (Redouble implies no fit) but off in competition. After an overcall:
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3♥: weak raise (10 or fewer dummy points with four or more hearts).
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4♥: usually five+ cards, a singleton or void, and fewer than 10 HCP.
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Cue: Limit Raise or better (at least a good 10 dummy points and three hearts)