I have a contract to modify a Bailey Infi90 system, which is something I have done in the past successfully. However, I attended one of the Bailey training courses for this type of work, and in all cases work by reference to the technical literature. I find it's simpler that way, and stops the confusion that comes from working on a variety of vendors' equipment. Howeever, I have recently moved and seem to have lost a few manuals. The only one I have yet to replace is the Bailey one, which of course is the one I need most immediately! I also am not really sure that I should have to pay several thousand dollars to access this off the web.