RE: Harriers w/H9 Extra 330s question.
You have the spoilerong moving correctly (I assume they are going up when the evel goes up and vice versa). I think the issue now is the amount of throw. 25 degrees isnt enough for 3D and way too much for normal flying. You'll only want to turn on the spoilerons when doing some 3D stuff, like Harriers or elevators. Turn them off the rest of the time.
On your 3D rate you really want 40 degrees elevator. 25 deg will probably put you right into a stall. Low rate needs to be more like 12 to 14 degrees. Be sure to use expo. Thats a personal feel issue, but I like about 40% on low rate and 75% on 3D rate.
Mike