Ney!

I think you are overreacting. The error was very minor. If you dont have a visible amount of aileron trim are your wings probably alwright. The error would not affect upplines as much as aileron trim
If your CG is at 190mm I would call it nose heavy. The manual says 200mm at windy conditions and 210mm at calm conditions. I`ve flown the entire season with the rerward CG witout problems. CG 20mm forward would give some up elevator trim giving you problem with uplines!

Regards Anders J