The 365mm forward of the tip tank for me is spot on (OK it's my balance point ) and most of the guys here use it. Just you need lots of elevator expo...45% up and 55% down
Flaps-take-off 15-16mm and landing 25-30mm. 8-10mm CROW is a good thing on this aeroplane. Other than that instruction figures will get you in the air. As always, you need to set them to suit your brain and thumbs!

Dave W