I didn't change anything on mine and I have flown
types of aircraft that the Space Walker is and
it flew just as the real one would.
I had a O.S. 91SII on mine and Although O.S. has more power than Saito
It flew just like the real one as far as power.
I don't know why people have to have unrealistic power in there planes.
Not even an Extra (full size) has as much power as my Space Walker
would of had with an O.S. 120... Mine came out at about 9 2\3 lbs
I also got sponsored on that plane flying in IMAC so there wasn't any power
problems. I admit, An O.S. 91 Didn't hover it but the real Space Walker doesn't hover. Oh well,,, If your going to have to add nose weight if you have a bigger engine go for it.
but if you have to buy a bigger engine it makes a 100$ difference for a
O.S. 120 over an O.S. 91