I have used 3" stand offs as per mk1 online manual CG was to far forward. Now using 11/4" as per the mk2 manual and CG is now just behind the wing tube which is much better. However I am still getting a pitch down effect as throttle increases even after increasing the thrust line angle to one degree+ up in relation to the firewall. I am also having to fly with elevator up trim. I appreciate there are two issues here but does any one have any experiences or comments?