Hi mate the nase32 works out of the box , out of the 1000s sold I think one had a bad gyro , KK2.1.5 just need to be flashed with steveis1.8s1pro and that will fly on the default setting , Naza M needs a little set up buts its very simple Pc software is very easy to use and shows you what it wants , when I say set up its like do you want manual mode or failsafe , do you want IOC thats it