Nice video with a few good ideas for rank beginners, but, in truth, the only one of the safeties shown that puts real pressure on a strong opponent is the second ball from the front. The second ball safes from the back of the rack only apply pressure when there is already a loose ball from the rack.
Loosening one ball by hitting a front ball almost never wins a safety battle against a good opponent and the Crane safety is an unusually poor choice in most positions unless your opponent is on two fouls. The problem is that, although a threat or two may develop in the front of the rack, the back row stays pretty much undisturbed (and it did in the demo) and allows a back scratch response that is effective and after which noone has the edge in the safety battle. The only time the Crane safety produces a real problem for opponent is when they are on two fouls, as they cannot take a scratch without major penalty. I knew Irving Crane well and saw him play dozens of times. He rarely used this safety unless his opponent was on two. To be frank, anyone who would play the Crane safety from frozen to the back rail while on no scratches has little understanding of 14.1 percentages. Even if you don't have the two rail backscratch in your arsenal, you can just about take a foul to almost anywhere on the table and you'll shoot your next safe from an easier position 99% of the time.
Also, skimming the back of the rack is a last resort as it will often allow a simple second ball response, which might put you behind in the safety battle. You will very rarely gain by playing it. It is primarily a way of starting a safety battle on even footing.
Strong players are not trying to get a ball to a rail when they backscatch and the demo shows the danger. The objective in a backscratch is not covered.
Finally, the safeties off the corner ball from behind the rack are omitted, and are among the strongest safeties available. The safeties in which a corner ball is skimmed from the front are also not considered. Safety play applicable when the cue ball is in the center of the table but below the head spot is also not considered.
This video barely scratches the surface of the subject of 14.1 safety play with a tight rack, giving little insight into why to choose one safety over another and overstating the extent to which opponent will have a problem after some of the demonstaed safeties are played.
On the brighter side, however, this lesson lasted just a few minutes and, given its length, it's pretty good
To the original poster: You can PM me to learn more about this subject. I'd arrange a phone conversation with you if you are serious about putting some materials together.
