four card Majors open 1♥ and
then you can get to a fit more easily in either Major as partner might
reply 1♠ and a fit comes
to light immediately, but if you open 1♠
and partner has 4 Hearts it is much more difficult now to get to the
INTERMEDIATES TIP 692
of Stayman is used to locate 4 card fits so with 5 CARD MAJOR SUIT
INTRODUCE IT at the THREE LEVEL.
ADVANCED TIP 692
If opener jump rebids in original suit this shows 6/7 playing tricks in
the hand (almost an Acol Strong Two- it usually correlates to 15/16
points BUT NOT ALWAYS)
NB Its not a points based bid!!