Three and
four-level preempts are roughly in accordance with the rule of 500 - you expect to take seven tricks vulnerable, six tricks non-vulnerable out of your own hand.
Light:
Preempts are frequently below "sound" ones
but better than "very light". Note if it varies with seat or vulnerability.
Very Light:
Preempts at the 3-level would be made on
7 3
J 8 4
7 4
Q J 9 5 4 2
Conv./Resp.:
For any special conventional preemptive openings like NAMYATS
(a four level opening of 4
to show a stronger than normal 4
opening and
4
to show a similar 4
opening),
responses to partner's opening preempt or other pertinent details use the bottom two lines of this section.