I did find the firewall is cut for right thrust, but their mount seems to take it out, ...magic? I ended up about 0 down, 0 right first try. Flew great- no dive or balloon on power changes.
Zero down is correct for this model, but
zero right?[sm=confused.gif] All models need some right.
The plane won't dive or balloon because it doesn't need downthrust, but it will pull hard to the left unless there's a LOT of right rudder trim. Or magic.
Also, if there is zero right then the prop drive face should be off-center to the left, requiring the cowl to be tilted to the left a little.