A few weeks ago, while JPDeni was out, I posted a message on this subject and unfortunately didn't receive any replies. Now that JPDeni is back (or that JPDeni's back's back) - please take a look at
http://www.gossamer-threads.com/perl/forum/showthreaded.pl?Cat=&Board=DBCust&Number=95327&page=&view=&sb=&part=&vc=1
kellner
http://www.gossamer-threads.com/perl/forum/showthreaded.pl?Cat=&Board=DBCust&Number=95327&page=&view=&sb=&part=&vc=1
kellner
a new approach to long/short (JPDeni!)