Hi Alfonso, some things you might want to check:
The nose-ring on the fuselage seems to have a bit too much "down" built-in, so if you align the spinner backplate with it you will probably have too much down-thrust (maybe up to 1deg too much). I think my downthrust's about 1deg or SLIGHTLY more, relative to the wing. So there's slightly more gap at the bottom of the spinner backplate, compared to the top.
Next, make sure the stab is set at approx 1/2deg down (at the L/E) relative to the wing. Mine's actually at approx 1/3deg.
CG-wise, my CG (inverted, model complete) is now approx 250mm from the actual wing T/E. So, much further aft than in the instr's.
Ailerons are neutral. I'm not (yet!) using the T/C. If you do, it needs to be shimmed to the right angle otherwise it won't fly well.
A very good model once it's trimmed out.
Hope this helps.
Regards, Bill.