Well I finally got to put my 35" PopWing up today, and am happy to report it flew perfectly
Stock motor, no name 9g servos, 7x6 APCe prop and 145g 1550mah 3s lipo in the stock cavity with NO added nose weight.
Had someone hand launch it for me and it almost hit the dirt as it was WAY NOSE HEAVY
and needed LOTS
of "up" trim to fly level. Once trimmed it flew great but inverted was tough it needed tons of forward stick.
Two flights both with the 1550mah lipos and it flew great. Top speed with the 7x6 prop is in the 60mph range with the stock motor.
CG was right at 210mm mark, which is right in the manual's recommended range, but I'll be moving it back for sure....