Congratulations on the successful flights! [sm=thumbs_up.gif]

Regarding rudder-aileron co-ordination - I have quite a lot of aileron differential on mine and so hardly need any rudder.

Also, you may find it is quite a hand-full in cross winds, and what I did (usually do it on small bipes) was to add a small cheap gyro (GWS, weighs 7 grams) on the rudder channel as an added safety device.
I have a lot of cross-winds at my field during summer, and this does help - see pic how I installed it on the fuselage side.
If you choose to do so too, set the gyro sensitivity on the mid range since it does not have to be as on a heli where there are usually also very fast servos.