Actualy, in the configuration of Z39.50 servers we can check by default a server to launch a faster search but we can not prioritize a server for the search to be done on this server before going to search on another and so classify the result according to the servers that respond to the search. It could be a new column in the page z3950servers.pl where we could designate a number that would refer to a priority in the search results or something else like that.It would be nice to have this possibility. Thanks, Patrick.