661_Pete, on 2019-March-11, 05:37, said:
Your club is free to change the requirements on announcements. But I wouldn't advise this, since you and other players at your club, will be better prepared to play in County or EBU competitions if you are familiar with the EBU regulations.
661_Pete, on 2019-March-11, 05:37, said:
If the singleton is a heart, then you can open 1m and rebid spades. This suggests a five-card minor, but partner will usually investigate other strains before leaping in the minor, so there is usually little damage.
If the singleton is a spade you will normally open 1♦ and rebid 2♣ over a 1♠ response. The danger is that your partner has responded 1♠ with five spades and four hearts. It can now be difficult to unearth a 4-4 heart fit, due to the murkiness of 4th suit forcing. I would certainly advise that you agree that a raise of the 4th suit should show a four-card suit. So in the sequence:
1♦, 1♠; 2♣, 2♥; 3♥
the 2♥ bid is 4th suit forcing (says nothing about the heart suit), but the 3♥ bid shows a four-card heart suit.