PERSCOM and TAPC are acronyms for the U. S. TOTAL ARMY PERSONNEL COMMAND, the source from which you requested Buchenauer's IDPF. You need not contact them again; requests are honored in the order received. Time element depends on their workload. There are a number of "professional" researchers around. Thirty dollars per file is about average - depending on the file, the researcher's competence and other factors. Sadly, many of today's "researchers" are very much like lawyers: their competence and integrity - or lack thereof - becomes apparent ONLY AFTER THEY HAVE YOUR MONEY!!! Sit tight and contact me when the file arrives.