When you create a plog you fill out a form that describes your projector.
horizontal, vertical, straight shooter
19,17,15,12,10,8,2 inch
lense type
i realize you can get insane with all the details...
if things change you can update the form... (i.e. check horizontal and vertical)
then.. in addition to searching the plogs, we can filter them as well...
and you probably guessed it... i'm always on the lookout for 17" standard lense horizontals,
cuz even though i'm building mine right now... i still have no idea what i'm doing...