Maastricht used mini-strips for a number of years before going stripless back in the 1980s.. A scribble pad for such info as headings is still used, however it is now possible to update Flight Plan info directly into the system.
FWIW a number of controllers from Maastricht who were involved in the development of the New ODS there spent several weeks at Swanwick whilst that was still iunder development. Our universal view was that the paperless strip system was outmoded, even then. Interestingly enough, nobody from Swanwick bothered to come play with our system. NIH at work?