GA plans

I would like to increase the number of GA aircraft in my FS world.I tried pasting the GENERAL AVIATION AI AIRCRAFT FLIGHTPLANS 1.1 byBen Laenen, but I got a shed load of duplicate flights... many of the planes I see had twins!!!I don't really want to mess about too much (such as starting a new Flightplans.txt from scratch) ...just increase the GA a little, so that there's a bit more low level activity.Can anyone point me in the right direction? I'm somewhat new to this and don't know where to look, though I do grasp the process. I don't really have the time to create a load of my own... especially on a global scale.Am I right in thinking that the ProjectAI and other major sets are all for Commercial plans?Any info would be appreciated.Cheers,Simon.