Didn't your stick arm get tired holding the nose down? Mine did as I
recall because you couldn't trim it out. 70 - 75 knots would be nice
but seems like most tow planes in cruise want to go a bit faster.

Glen Kelley wrote:
Unfortunately, I just had the opportunity for an aero retrieve in my PIK-20.
8 deg. positive flap made for a comfortable tow at 70 - 75 knots and held
good tension during the occasional "snooze".