Pipo

4♣ Very difficult. I think I am a bit too strong for a 4♦-bid and 4NT may get me to high. For slam, I like partner to have either ♣-ace and a good spade suit or a very strong spade suit. I hope partner will make a positive move with these holdings after a 4♣-bid. If I bid 4♦ partner might bid with KQ of clubs to a hopeless slam.

2♥ I don't like DBL, because it may lead to 3♣ in a 4-3 fit, when 2♥ in a 4-3 fit or 2♠ in a 5-2 fit may be better. Maybe DBL should show 5=3=1=4.

4♦ I want to hear if partner has a heart control (singleton?). If partner does not have a heart control, I may get a heart ruff or may not have enough heart discards on the club suit. If I bid 4♣ then I dont know what to do after a 4♦ cue by partner. I don't like 3NT because my hand does not have playing power (no 6 spades, wrong heart control, singleton king are bad features).