Rickair,

That was my original understanding as well. My thinking was then thrown by the following explanation taken from the FAA referenced above,

"The person is using a Cessna 336 to add an airplane multiengine rating onto a flight instructor certificate for which the applicant already holds an airplane single engine rating....

NOTE: To flight-instruct in a multiengine airplane that has a VMC speed established by the manufacturer, the person would merely need to complete training and certification at a pilot certificate level of at least the commercial pilot level in a multiengine airplane that has a published VMC speed, and then the limitation would be removed from his pilot certificate."

Thanks for your earlier reply. I know I'm wrong, I just don't why!

Cubdrick