Hello, I have an old style Dominator bowl, the one with the water lubed shaft bearing, and the steering nozzle that is part specific. (only fits the old style dominator bowl), it’s not Berkeley compatible. The flange is too large on Berkeley equipment to fit the Dominator bowl. I have machined the dominator bowl to accept a Berkeley steering nozzle. The question is. What is the best diameter to enlarge the exit opening to? I've heard the bowl preforms better inlarged. I would like the transition angle from the bowl to match the steering nozzle angle as much as possible. If I open it up so the plains are the same (so it’s a strait line) I will be cutting into the stators, and I think the opening will be close to 6.25”. Is this too large? Any suggestions?