Dan Petchel (www.CarsincNJ.com) has been posting some information on Targa Top care and feeding on the Pelican BBS. I would suggest you take a look.The top you save may be your own.

This is a link to one where he discussed some preventative maintenance on the latch to prevent inadvertant blow off: http://forums.pelicanparts.com/showthread.php?t=436978

Heres some others:

http://forums.pelicanparts.com/showthread.php?t=358108

http://forums.pelicanparts.com/showthread.php?t=353946