I think you might be missing the point. Larry and I are talking about WHY the enriched mixture would work at all, and that is due to the cold dense morning air. Just adding additional fuel through a richer mixture won't add power. You need more O2 molecules to go with the additional fuel.
It is a combination of the two things. If you rich the mix most of the time, it won't make much difference, maybe even make drivability worse. You'll wear plugs out faster, and probably not see any performance increase.
If you activate the cold start enrichment when the intake air is warm and less dense, you'll not make any improvement at all. BTW, your FI system is pretty well designed to optimize the mixture. If you truly monkey with it, you MIGHT be able to get a lttle boost on some occasions, and wreck it for the rest of the time you're driving.
1998 C230 "Black Betty"