Agreed. My point is that you're making a judgement call. The 11-ball is an issue. To leave it there is to say, "you can't handle this." If you're right, you can win. If you're wrong, you lose.
If he tries to run out it is a good shot, but lets say your cross bank safe comes off the 7 and the 12 stops in the jaws.
If the 7 comes off the rail just abit which it will likely do with the weight you shoot that safety your opponent can now combo in the 12 with the 7 ball and spin under the 5 for the safe, and now you are kicking at a 11 that is hard to even hit and the 8 still does not go.
If the 7 comes out too much for the combo then the carom to make the 12 off the 5 still leaves a very tough safety to work out of since the 5 is going to block the jump shot and the 8 is still messed up.
Now if you come off the outside of the 7 so that the 12 is on the rail, well now your 12 does not even go because the 7 is going to stay close to the pocket. If you hit it hard enough that the 12 does in fact go the 7 is comming down onto the 5 and if they dont line up for a combo the guy can roll down onto the 5 and push the 7 under the 12 leaving the 12 hooked behind the 5 and the 11 hooked behind the 8 and 1. You have to kick to hit the 11 now because if you foul the guy is going to take the ball in hand, set up the 1-11 combo, and leave you hooked behind the 8-ball, and if he can get abit of bottom you could be frozen into the 8 and rail and have almost no hit while your opponent now has every ball on the table that goes.
Even banking the 12 into the 5 ball, which you would really want to make that 5, leaves a guy who knows what he is doing complete control at that point the 12 is likely to stop where he can hook the 11 and 12 behind the 3 and 4 playing the 2-ball in and leaving a hard cut jumpshot or kick which at that point makes that bank shot up into the corner by the 6 you once had look easy.
If you hit the 5 and it does not go in it now blocks the pocket and assuming the cueball stops where it is shown there are a heap of ways to get on the easy thin carom off the 1 ball making the 11 and hooking the guy behind the 8 and the 1 ball you just thinly hit off of.
There are just so many options, if you play that cross bank on the 12 your opponent better not be a good chess player or you are a 80%+ dog to lose once you play that almost no matter how you hit that cross bank safe.