So as I am trying to find a HT I come across this issue. The only radio that advertises compliance is Wouxun. I have really been leaning toward their KG-UV6X for all the accessories and features. (I really want aircraft freqs however) With that said, none of the major 3 produce a radio capable of 2.5 channel steps. Do you guys believe this will be a simple software fix? So I buy a Yaesu for example all I need to do is upgrade the software and be done with it?