Continuously Rasterize with Masked Solid

Hi,

i have a pre-comp with a masked and stroked solid, but in the final comp on scaling, "Continuous Rasterize" doesn't render the mask path out smooth yet. How is this done ?

Also, i'd like the stroke to render at its original stroke size and not be scaled ... is that possible with the stroke within the pre-comp? With an expression or so ?

Regards,

Frank