System         ACOL WITH Multi Two Diamonds
1NT            10-12 1st 2nd position non vul. Otherwise 12 -14
Majors         4cds+, DR = limit (pre-empt over X), 2NT Baron 16+ any shape. 
	 Jump switch shows good supporting hand plus 1st round control in suit bid
Minors         1C & 1D show minimum of 4 cards Simple raise = Inverted, 1N/1m:6-10, Jump raise - 
               pre-empt
Strong         2C shows Game Force or strong 4 loser hand, Responses show controls - 2D = less 
               than 3 controls, 2H = 3 controls, 2S = 4 controls etc. Ace = 2 controls, King 1. 
Multi          2D is a weak 2 in majors OR Balanced 21/22, OR 17-21 4/4/4/1 shape - responses 
               are - 2H to play opposite weak 2, 2S shows game interest in hearts, 2NT = enquiry
2H	 9 - 13  5/5+ hearts and a minor. 2NT request opener to bid minor
2S	 9 - 13  5/5+ spades and another. 2NT request opener to bid other suit.   
2NT	 9 - 13  5/5+ Both minors
3C/3D	 13-15   7+ - inviting partner to bid 3NT with outside stops
3H/3S	 2 - 9   7+ - pre-emptive 
Overcalls      Jump o/call is Diamonds, Hearts or Spades is pre-emt 5-11 points
               Cue bid shows 5/5+ 2 suits of same color.
               Jump o/call in clubs shows 5/5+ in odd suits (neither same rank/color)
		Jump o/call of 2NT shows 5/5+ in two suits same rank
               Defence to 1NT - ASTRO. 2C = Hearts + minor. 2D = spades + another. 2H/2S natural
NT-Over        1N:16-18, Systems ON
Doubles        First round double in competition shows 9+ points. Bids shows less than 9 
VS.Doubles     New Suit Force 1-level, 2N = Limit raise or better!
Preempts       may be light
Vs.Preempts    Diamond over Clubs for T/O. Otherwise double for TO
Cuebids        Modified Ghestem - shows 5/5+ two suits of same color - see above
Slam-Bids      Roman Keycard Blackwood 30/41 	Gerber over 1NTs 
Suit-leads     3rd/5th best, kQx qJx j10x t9x kJtx kt9x qt9x xxX xxXx xxxxX aKx
NT-leads       3rd/5th best, aKjx aqJx ajT9 at98 kQjx kQt9 kjt9 kt98 qJtx qt98
               jT9x t98x xxX xxXx xxxxX
Carding        Count
Discards       Even encourages. Odd revolves.

Suggested defence to Multi 2D - Double shows diamonds. 2H natural. 2 spades for take-out.       
Holding 5+ spades pass and bid spades next time round when the opponents have disclosed their 
hand.  All other bids natural.

s natural.