Using Alan Negrin’s services for the initial test flights of my Sportsman, N375PS, was a great deal of help.
Although I built the airplane, Alan has an incredible amount of experience flying his Sportsman which is very similar in technology to mine.
For those initial flights, Alan’s awareness of the characteristics, sounds and settings of the airplane was an asset in determining and diagnosing any abnormalities that I might not have initially noticed.
Alan also was very helpful in pointing out flight and maintenance characteristics and techniques he has picked up over time.
Like anything, when you spend so much time working on something it become easy to overlook problems. Assistance provides and extra pair eyes and ears.