I thought that's what Lou meant - the third rail being the foot rail under the 7. I'd try to miss the 7, take the scratch and stay short of the pocket.
I'd never shoot it jacked up. I'm stupid but not suicidal.
pj
chgo
Can you tell me the advantage of the 3 rail kick (and possible foul) rather than thinning the 5 and bringing the cueball under the 7?