I recently converted to disk brakes but my Master Cylinder Reservoirs are not equal.?

[Hazieview]

I recently converted to my rear drum brakes to disk brakes but my old master cylinder still has the offset reservoir. Instead of the two reservoirs being the same capacity, the front reservoir is still much bigger than the rear. Will this be a problem? Do the reservoirs need to be the same size if I'm running front and rear disk brakes or does it really matter?

Thanks!