OCP is a Super-Precision bidding system loosely based on descriptions of Super-Precision by Benito Garozzo & Giorgio Belladonna, and also by Eric Jannerstern. I say loosely, because over the years OCP has developed in many directions away from the Super-Precision of the 1970's and 1980's. OCP makes more extensive use of Asking Bids, Lebensohl and has advanced techniques for coping with interference in Asking Bid sequences.
The original system that I developed firstly with Bob Bradbury in the early 1980's, and later with Jason Hackett was a system primarily intended for use in Team events. Some of the Openings only gained Restricted or even Experimental licences at the hands of the English Bridge Union, but most of the system is equally applicable for use in Pairs events. In recent years, the system has developed even further, with more extensions and some new Asking Bids. Since 1992, however, I have played exclusive online via Bridgebase Online and the restrictions that the EBU or ACBL would place on us do not apply there.