beautyfull plane..

i havent flown that plane or seen one fly, but i recomend u to fly at the recomended forward cg 1st... no need to put the control trows at minimum, ull be in trouble if u need more in flight!!!

the other props will make the plane fly slower, when cut throttle it will be like applying brakes, but throttle response will be better, and also vertical performance, rpm may be little hi, but its ok as long as u r happy with the flight performance...

well, thats all my opinion, be safe and have fun!!!