Thought I would give you something to look at [wink]
This may have some helpful info
http://www.tidalfish.com/boards2/viewthread.asp?forum=AMB%5FAP464338673&id=2134&sr1=van+horn&sr2=&ExMth=no#post2144
This may have some helpful info
http://www.tidalfish.com/boards2/viewthread.asp?forum=AMB%5FAP464338673&id=2134&sr1=van+horn&sr2=&ExMth=no#post2144