So I found I struggle with cutting a ball frozen on rail to my left if using low left( assume I have to for position). Anyways I know if I were to use running English I would have to hit ball and rail at same time and aim to hit a hair fuller to compensate for deflection. Anyways what was surprising is I am only able to consistently execute the low left shot if I aim the same way as I do for the running English. In theory I should have to compensate for cb deflecting to the right but somehow works when I compensate the opposite way. Weird!