Does anyone have used a "Model B201 Universal made by then Multi-charge, LTD,. based in Ontario, Canada, now named Shooting Chronys, INC, same address. Would you have a operators manual for this discontinued model and could make a copy? I acquired a B201, and would like to calibrate it for possible use. It was molded using "Red colored Melamine" material, it was discontinued in 1981. Current bars are now zinc and the company has no manuals available. Thanks.