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The modern writeup downloadable PDF of what pros and clients play when they play precision, in Chinese language finally.
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A 66-page PDF with a bidding-tree of the whole system as played by Eric Greco and Geoff Hampson during most their career. The system is a professional implementation of Standard Modern Precision (SMP), with the main change that 1C-1H denies 5+S and 1C-1S is 5+S 8+ HCP, the most frequent variation from classic SMP.
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Symmetric relay system with Meckwell tendencies, played by one of the most successful Dutch pairs in history, Simon de Wijs and Bauke Muller.
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A 49-page PDF (and text file version) with a bidding-tree of the whole system as played by Verhees – van Prooijen during their career, which included a Bermuda Bowl title.
