Thumb Brake, winter project

[RIPPERTON]

Is this type of setup no good?image.jpeg

In this pic, the upper MC is flowing through the lower MC compensating port and it would have to be drilled out so it would flow more.
Compensating ports are very small maybe 1.5mm diameter and that would slow down the action of the thumb brake.

[Slow bro]

In this pic, the upper MC is flowing through the lower MC compensating port and it would have to be drilled out so it would flow more.
Compensating ports are very small maybe 1.5mm diameter and that would slow down the action of the thumb brake.

Thanks