When I've come across this shot I've had more success with rail first, low center on the CB. When I've tried it with low or high right, it has worked before but not as often as low center. I think the reason being is, with the righ hand english, the contact point on the rail is hard to judge and I've hit the OB too full, missing it and leaving a sell out. When I use low center, even if I miss the shot, the CB has always eneded up at the other end of the table because I'm cutting the OB in instead of throwing it, which is a thinner hit.
Using the bottom left is also an option and I've used it many times before too. The shot may look as if it is dead straight in, but sometimes there is a very slight angle and the angle I look for if I'm going to draw it is the one that gives me more room for error. In this case, an angle to cut the ball to the left. Because I'm hitting the CB so hard, with extreme left draw, I'm going to throw the OB to the right, so I'll need the left side of the corner pocket to play with. If I don't have that angle, I use rail first.
Top right is another option that I've used with mixed results. Make or miss the ball, the scratch in the bottom right corner is always there.
So, I guess there are many ways to shoot it and to be honest, if the shot came up 10 times, I may shoot it a different way each time. Peace, John.