[Tryggolaf]

Originally I started out playing ACOL, but I would like to try a Precision system.

So far I know the following bids/system:
1♣ = 16+ (negative 1♦ response)
1♦ = 11-15, 4+ ♦
1♥ = 11-15, 5+ ♥
1♠ = 11-15, 5+ ♠
1NT = 12-15 balanced
2♣ = 11-15, 6+ ♣ or 5+ ♣ & 4+ M (2♦ asking bid)
2♦ = 11-15 with 4♠-4♥-1♦-4♣

I would like to explore a bit more precise continuations to make the system true to its name.

Do any of you know some bids/sequences I should learn or good books/sites on this topic?

[blackshoe]

Precision Today, by Berkowitz and Manley. Their opening bids are a little different:

1♣: 16+ HCP, artificial, Forcing. Responses: 1♦ neg, 1M or 2m positive (8+ HCP, 5+ card suit headed by 2 top honors), 1NT 8-13 balanced, 2NT 14+ balanced.
1♦: 11-15 HCP, 2+ ♦, no better bid. Responses natural.
1♥ or 1♠: 11-15 HCP, 5+ card suit. Responses natural
1NT: 14-16 HCP balanced. Responses: as you like.
2♣: (11)12-15 HCP, 6+ ♣, Responses: 2♦ asks, others natural.
2♦: 11(12)-15 HCP, 4=3=1=5, 3=4=1=5, 4=4=1=4 or 4=4=0=5. Responses: 2NT asks, others natural (simple responses are to play).

Another possibility is Barry Rigal's Precision in the 90's. Again, a slightly different system, but very well presented, and shows the kinds of questions you should be asking yourself when putting a system together.