tIANci
I wouldn't worry about maidening your friend's Lancair. Just don't make pylon turns, snap rolls or tight loops and make a soft landing. check the CG and all the other pre-flight checks you would do with your new plane. Go with the recommended throws. I don't like flying other peoples' planes, although I do all the time. The owner assumes a measure of responsibility by offering or allowing you to fly their planes...unless you make some bone-head mistake.

CAsniffer