System         Natural Weak NT
NT             1N:11-14 2N:20-22  3N:Gambling  4 suit Transfers, Direct 3 level bids= shortage, 
4d/4h = Yexas Transfers
Majors         5card spades, Hts can be 4, J2N!,Bergen Raises (not by passed hand)DR = Pre-empt
3S/3NT over 1H/1S = singleton somewhere. Splinters = Voids. Drury.
Minors         1D shows 4, DR=limit, 1N/1m:6-9, 2NT= 16+4m or singleton, 3N/1m:13-15, Splinters 
= Voids
Strong         2C shows 22+ balanced or 9+ tricks,2h dble negative,2NT pos.in hts, 2D 
artificial, may be wtng
Weak           2d = Multi weak in Mjor or strong minor, 2NT = enquiry, otherwise pass or correct
               2h/2s = 5Major and 4+minor(5 vul) 6-9, 2NT enq., minor bids pass or correct.
Overcalls      8-16 HCP, cue is 1R force, jump overcall is pre-emptive
NT-Over        1N:15-8, 2C Stayman!, other systems on, Unu 2N = Lower 2 unbid
Doubles        Negative -> 3S, values later
VS.Doubles     New Suit Force 1-level, 2N = Limit raise or better!, jump in other Major = 8-poor 
10, jump in bid Major= 5-7 4card supp.
Preempts       may be light
Vs.Preempts    Dbl is takeout at 2 and 3 level, 2N/weak 2 = 16-9 HCP Bal
Cuebids        Michaels (5-5),Ghestem, 3c= odd suits or natural if opp's have bid 2 suits
Slam-Bids      RKC 14/30 (i up in minors), GSF, DIPO, Gerber over 1N, 2N openings.  
Suit-leads     3/5th best, KQx Qjx Jtx T9x kJtx kT9x qT9x xxX xxXx xxXxx AKx, A=attitude, 
K=count
NT-leads       4th best, aKjx aQjx aJt9 aT98 Kqjx kQt9 kJt9 kT98 Qjtx qT98
               Jt9x t98x xXx xXxx, xXxxx
Carding       low discard encourages, High discourages, infreq count signals(std), Smith Peters.