{TAIL ~ A simulation engine} in accordance with a preferred embodiment is based on a Microsoft Visual Basic component developed to help design and test feedback in relation to {HEAD ~ a Microsoft Excel spreadsheet} 
{ TAIL ~ A simulation engine } in accordance with a preferred embodiment is based on a Microsoft Visual Basic component developed to help design and test feedback in relation to { HEAD ~ a Microsoft Excel spreadsheet }
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD