You are right, I upgraded from the parabolic to the ITELITE 14dBi flat panel. The range is crazy good. I use it on my P4P. I also have a P3s that I bought before the P4p and on the P3s I have the FPVLR. It's also great. The ITELITE flat panel may be a smidge better but that's just me. Either one of those will extend your range alot.They help but not even close to a flat panel like a maxxuav DB2, parabolics like flat panels focus all the signal forward so you have to make sure you are pointing directly to the craft, if not it will be worse. I used a pair when I got my P4 many moons ago and it did help somewhat, then I got a flat panel and it was a game changer.