I've never understood the logic of setting the cowl low in anticipation of the mounts sagging. I figure the thrust line is properly set when installed with 4 new mounts. If/when the engine sags at a later date the thrust line could be re-established with shims at the firewall. While I'm moving at a snails pace over here I can attest to the fact that my engine has been hung for a while (I"m not admitting how long
) with no appreciable change to the cowl/spinner relationship.