Well, if you place the ob closer to the side rail, depending on how close, it would certainly enhance the probability of making it. However, Jude, me, Wayne and most players that do compete in tournaments or for cash would usually duck the shot that Hal diagrammed. The percentage of making it just isn't there. If the ob is close to the bottom rail as depicted, I like the bank on the 9 just as Jude mentioned. If it's a shot on the 4, 3, 2 or 1, I like playing defense.
If we're talking practice, then yes, I would use outside english to spin the shot in. The problem with the outside spin is the possible scratch in the side pocket. I would also try using center ball just to see where my cb goes and to get a good judge of the true aim. Actually, I would suggest working on center ball first and then try outside and maybe even inside just to see if I could do it.