Hi, I need an opinion from those who have used both Radar Contact ver. 3 with AI Smooth and Radar Contact ver. 4. I use mainly GA aircraft at smaller airports. My question is...will Radar Contact ver. 3 with AI Smooth provide good traffic control or do I need to get Radar Contact ver. 4. I currently have version 3 but have not had much of a chance to use it yet and I don't want to upgrade unless necessary. Thanks in advance for your advice. Regards, Dave

Opinion anyone?

i suppose it will. but development on v3 is long ago ceased. v4 is what is current, 4.01 will be a quick fix release, 4.1 will enahancements that didn't make it in to 4.0, and 5.0 list of features is firming up.fly with v3 and ai smooth for a while, if you want. you can upgrade to 4.0 at the upgrade price until june of next yearjd