Jack Hawthorn is the author - a ex-naval engineer (nuclear physics) - I have not found any weakness in his text. Either hand can become captain of the hand. . Opener by having 16 points r 7 controls or and with any hand with less than 4 or losers. Romex is used to to quantitatively bid strong NT hands - has the quality mark of a 2 point range. Kokish relay 1C - 1D: 1H - 1S = opener has 20-23 HCP ballanceed hand - responders 1S shows 0-4 or 5 points) 1C-1D is 8 + points positive with an unbalanced hand Responder bids 2C over an opening 1H or 1M bid.- ie standard including criss cross bidding of responders Major with a balanced hand you should bid 1C - 1 D with 0-10 points in hand (bang on hand evaluation of balanced hands. the genome of tie systen is 2D = 5431, 2H 6421, 2S 5521, 2NT 4441 - Delta relay reveals the exact shape of partners hand. It is possible to bid controls (2 step bid (Beta).,Gamma bids can be replaved by kickback RKCB - saves bidding space. Here trump suit agreement needs to precede bidding kickback or KRKCB and delta bids need to have revealed the shap of partners hand. Responder bids submarine splinters - appropriate when th author is a submariner this makes it difficult for opponents to find alternative contacts or to make lead directing doubles. 2/1 bids pre-empt partners bidding. This system is excellent because it is possible to make limit raised 1/2M = 9 loser hand 1M 3M = 8 loser hand. Opener needs 7 losers or less to open (accept when opening 1NT 10-12 )i.e.with both 4 - M if vulnerable 2C is g/f 2/1 bid - it is completely artificial.[/size][/size] Having spent years deriding ACOL, I now find it is possible to intergate this system into a precision system and now my 2/1 bidding has become a the means only to preempt partner. I hope I have given you a flavour of this system - pls feel free to contact me should you want to play this system on line or if you liver near Colchester contact me directly. - This is a bare bones presentation there is a lot of detail in this system to allow you to fully embrace this system - especislly so as it is possible to use standard modern precision (i.e. last train etc. ps it is a shame that we cannot practiceprecision bidding online - if this is possible pls let me know how. top players seem to use precision systems.[/size][/size][/size]