sight right

[hatterboard]

has anyone got any experiences of this ?
is it for cueing or merely sighting ?

[pcb]

it is used to make sure your eyes and cue are on the line aim you have selected . hope this helps

[CoachGavin]

It is fairly expensive if I remember rightly for what it is when you can easily make one yourself at home. It is really just 2 lines that need to line up if you are online. You get down to the first line and then expose the 2nd line and hopefully they join up. If they do not then you have got down slightly across the line. I think Barry Pinches and Steve Davis both used it quite successfully.

[Theguywithaplan]

This is it:
http://www.youtube.com/watch?v=JNLGgfrNavg