Jussi

I suspect that your steering problem has more to do with how much your nose wheel turns than with the geometry. You need/want very little movement in your steering on takeoff. I used low rate on my take off and high rate for taxiing.

Also if you have steering cables, you want to make sure that there is not too much slack in them.

I had my nose strut angled forward and had no issues with the steeing until my cables got slack. I had rubber bands going from the middle of each cable to the each side of the fuse. One of the rubber bands was broken. You can also use the zip tie method as described by Todd here: http://www.rcuniverse.com/forum/m_27...tm.htm#2747929

BTW 200 MPH motorcycles have the front strut angled forward.

Here's a pic of my old ROO.

Good luck