Delayed Raises and Sacrifices
This is usually made on one of two hand types:
A doubleton
An intermediate-strength balanced hand
Passing Out the 1 and 2-level
If the opponents have a fit, you probably do too. Furthermore, if they can only make seven tricks, surely you can make eight...
Bidding 4N as Keycard, Every Time
First, you need a suit established as trumps to ask for keycards. Second, not every slam requires bidding keycard.
Defending Too Actively
They lead. Every. Suit.
Not Preempting
This is usually made on one of two hand types:
A doubleton
An intermediate-strength balanced hand
Passing Out the 1 and 2-level
If the opponents have a fit, you probably do too. Furthermore, if they can only make seven tricks, surely you can make eight...
Bidding 4N as Keycard, Every Time
First, you need a suit established as trumps to ask for keycards. Second, not every slam requires bidding keycard.
Defending Too Actively
They lead. Every. Suit.
Not Preempting