I have found the following info on Lucky SHD B&w film.
"Lucky is the largest producer of photo-materials in China founded in 1958 and manufacuturers wide range of materials including black and white films and papers, colour and X-ray films. The factory has ISO9001 certification.
Lucky films have been widely distributed in the USA for some years, where they gained a reputation for over-exposure effects and a cult following amongst the pinhole camera enthusiasts. These are the latest, improved, films which nevertheless still exhibit approximately the same spectral sensitivity and the equal sensitivity to colours across the spectrum, together with the typical Lucky over-exposure effects. Pictures taken with Lucky film appear somewhat different to other films as all colours, whether green, blue or red are rendered tone for tone to the grey scale.
Lucky films are coated on a clear base giving shorter print exposure times and scanners are better able to capture the negative densities.
The films should be loaded into the camera in subdued light or shadow as light hitting the film leader can be 'piped' along the film by the transparent base leading to unwanted fogging. It is also possible the the film pressure plate can reflect some light back into the film leading to over-exposure, particularly in the highlights. This effect can be used creatively, in pinhole cameras for example, or combined with a red filter to give pseudo infra-red pictures. In this case, over-expose and underdevelop (pull)."
Sounds interesting, must give it a try.
Peter