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.

Other conventions
4th suit force
DAB
DOPI & ROPI
Truscott
ASTRO	2C shows Hearts & Minor. 2D shows Spade & another. 
Crowhurst	similar to NMF except 2C is always asking after partner's rebid of 1NT
Unassuming Cue Bids - promise support for partner with values
1NT Runouts	The wriggle - pass by responder request re-double.

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.

fence 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.