Bob and Jose,

Here is the documentation!
http://temp.corvetteforum.net/c5/kgruber//gfmsp.jpg

Karl
Jose, let me repeat what I have said many times: When you are told
something like this, ask for documentation. There are far too many pilots
who are willing to swallow a story whole without question, and far too
many instructors who simply pass on what they have been told by someone
else.

Bob Gardner