Yes, keep the realism, the cut out was not a problem here. But I'm wondering why the Spit and the other planes are shaking the epileptic dance above 10.000ft. Since the last patch the shaking is slightly improved, I think it is caused by the carburetor, but how to avoid the shaking? I don't think that the real pilots were sitting on epileptic machines...
Also the instruments shaking is useful, in the real erly Spit, if the rpm needle shakes -100/+100 rpm it means there is a problem with one of the magnetos.
ps
the shaking problem is at full CEM. When you set the full automatic pilot, the shaking disappears, as well the cut out. Maybe the Ai is flying without full CEM?