Drury (Reverse Drury, Two-Way Drury, and Romex Reverse Drury)  
    -----  

After a 3rd or 4th seat major opening, a 2C or 2D response is used
to show a limit raise (10-11) and asks partner if their opening was
sound or light.


Drury  response of 2C asks.  Opener responds:
----- 
   -2D	   light opening
   -other  sound opening and natural rebids

Over a 2D rebid, responder rebids the major to signoff.  After 
1S-2C; 2D- responder can rebid 2H to checkback for a better 4-4
heart fit.


Reverse Drury  response of 2C asks.   Opener responds:
-------------
   -2D	  sound opening
   -2Maj  light opening
   -2H	  light opening, but also has 4+ hearts (could be 4-4
          in the majors) 

Here the opponents cannot cheaply get in a double of 2D to ask 
for the lead of diamonds.  The opener and responder get in and
out of the auction as fast as possible when opener has opened
light-- a very nice feature of Reverse Drury.  


Two-Way Drury
-------------
A response of 2C to a third or fourth seat opening shows 3 card
support and 10-11.  A response of 2D shows 4 or more card support
and 10-11.  Over 2C you would use whichever Drury you prefer.  
Over 2D, opener rebids 
    -2Maj  light opening 
    -2H    light opening, but also has 4+ hearts
    -other sound opening 


Reverse Romex Drury
-------------------
This is an extended version of Reverse Drury.  After a 2C response
opener rebids:
    -2D    sound opening and either inviting game or mildly slammish 
    -2Maj  light opening
    -2H    light opening, and has 4+ hearts  
  
    -4Maj  game values, but no slam aspirations 
    -2NT   balanced 17-18 
    -new suit at three level, or 2S after opening 1H
           natural, slam try and _guarantees_ a singleton somewhere
    -new suit at the four level or 3S after opening 1H
           slam try with a void in the suit bid
    -3Maj  Trump Asking Bid, slam try
    -3NT   DEMANDS a cue bid from responder (opener usually has a 
           void)