I had no trouble getting the recommended flap travel, I can't imagine needing mored than 45 degrees!
to get the propper travel, i had to add an additional mix to the flap channel mixed off of the flap function switch. I will say that on a P120 I'll take as mch flap as I can get to slow th eplane down quicker, this way i can come in on a little bit of power above idle and have better descent control.
Wojtek