(ridiculous answer for the day) Buy 1200 lbs of each, on Wednesday DOE test SAC 305, dump and clean then on Thursday DOE test Sn100, dump and clean then on Friday DOE test SAC 305 again (cause you never can have enough data), dump and clean then on Monday DOE test Sn100 again. By then you will either; 1. Have enough data to find a suitable mix for your facility 2. Be fired for wasteful spending including time wasted 3. Been berated by those persons who had to put up with you making them dump and replace the unit as well as recycling or waste disposal personnel. 4. Just have had enough and begin considering a nice relaxing telemarketing position Oh, by the way, my suggestions are always free, no thanks necessary... Franklin --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 1.8e To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 -----------------------------------------------------